Microsoft windows server 2012 r2 standard local privilege escalation free download
Microsoft is aware of all of these issues and has been for some time circa These are unfortunately hard to fix without breaking backward compatibility and have been leveraged by attackers for over 15 years. The exploit consists of 3 main parts, all of which are somewhat configurable through command-line switches. Each part corresponds to an already well known attack that has been in use for years:.
If no entry exists, it will then attempt a DNS lookup. If this fails, an NBNS lookup will be performed. Any host on the network is free to respond however they wish. In penetration testing, we often sniff network traffic and respond to NBNS queries observed on a local network. We will impersonate all hosts, replying to every request with our IP address in hopes that the resulting connection will do something interesting, like try to authenticate.
Because this requires local administrator access. So how can we accomplish NBNS spoofing? If we can know ahead of time which hostname a target machine in this case our target is We can overcome this by flooding quickly and iterating over all possible values. What if the network we are targeting has a DNS record for the host we want to spoof?
This also surprisingly applies to some Windows services such as Windows Update, but exactly how and under what conditions seems to be version dependent. However as we saw above, we can spoof host names using NBNS spoofing. At the same time, we run an HTTP server locally on The English United States version of this software update installs files that have the attributes that are listed in the following tables.
The dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time DST bias. Additionally, the dates and times may change when you perform certain operations on the files. GDR service branches contain only those fixes that are widely released to address widespread, critical issues.
QFE service branches contain hotfixes in addition to widely released fixes. In addition to the files that are listed in these tables, this software update also installs an associated security catalog file KB number. The files that apply to a specific product, milestone SP n , and service branch LDR, GDR can be identified by examining the file version numbers as shown in the following table:. LDR service branches contain hotfixes in addition to widely released fixes.
Security update file names For all supported bit editions of Windows Vista: Windows6. Removal information WUSA. File information See the file information section. Registry key verification Note A registry key does not exist to validate the presence of this update. Security update file names For all supported bit editions of Windows Server Windows6. Security update file name For all supported bit editions of Windows 7: Windows6. Deployment These updates are available via Windows Update only.
Restart Requirement Yes, you must restart your system after you apply this security update. File Information See the file information section. The files that apply to a specific product, milestone SP n , and service branch LDR, GDR can be identified by examining the file version numbers as shown in the following table: Version Product Milestone Service branch 6. For all supported xbased versions of Windows 8.
Need more help? Was this information helpful? Yes No. Thank you! Any more feedback? We think that several threat actors, including FruityArmor and SandCat, used this exploit. Interestingly, FrutiyArmor and SandCat seem to follow parallel paths, both having the same exploits available at the same time.
This seems to point to a third party providing both groups with such artefacts. This spy program spread via email and masqueraded as the VPN client of a well-known Russian security company that, among other things, provides solutions to protect networks. So far, we have been unable to relate this activity to any known actor. The malware itself is a simplistic document stealer. However, given its victimology and the targeted nature of the attack, we considered it relevant enough to monitor, even though we were unable to attribute this set of activities to any known actor.
The low OPSEC and simplistic malware involved in this operation does not seem to point to an advanced threat actor. The attackers rely on watering holes and spear phishing to infect their victims. We also found evidence of a compromised welfare club for military personnel distributing the same malware during the same period. This malware was first used in the wild in January and subsequently underwent constant development.
We have only seen this malware used in a small number of active campaigns since January, all targeting government, military and diplomatic entities in the Southeast Asia region. The latest campaign, conducted in August, seems to have targeted only a select few individuals working for a military organization.
Collection 1 is just a small part of a bigger leak of about 1 TB of data, split into seven parts and distributed through a data-trading forum. The full package is a collection of credentials leaked from different sources during the past few years, the most recent being from , so we were unable to identify any more recent data in this ‘new’ leak.
It turned out that Collection 1 was just part of a [larger dump of leaked credentials comprising 2. The new data dump, dubbed Collection , was discovered by researchers at the Hasso Plattner Institute in Potsdam. The theft of such ‘traditional’ forms of authentication is bad enough, but the effects of using alternative methods of authentication can be much more serious.
The exposure of biometric data is of particular concern. A compromised password can be changed, but a biometric characteristic is for life. Consider, for example, the potential impact of smart speakers for listening in on unguarded conversations in the home. Further analysis of this event led to us discovering a zero-day vulnerability in win32k. We reported it to Microsoft on February 22, This condition leads to a use-after-free scenario. The exploitation process for all those operating systems does not differ greatly and is performed using heap spraying palettes and accelerator tables with the use of GdiSharedHandleTable and gSharedInfo to leak their kernel addresses.
In exploitation of Windows 10 build and higher windows are used instead of palettes. Besides that, that exploit performs a check on whether it’s running from Google Chrome and stops execution if it is because vulnerability CVE can’t be exploited within a sandbox. However, the collection of cases where this tool has been used mean that we consider it a subset of activity in its own right.
On the basis of this threat actor’s past behaviour, we predicted last year that Zebrocy would continue to innovate in its malware development. The group has developed using Delphi, AutoIT,. The group also continued to innovate. Kaspersky Lab researchers have detailed how both groups shared the same C2 command-and-control server infrastructure for a certain period of time and how both targeted the same organization almost simultaneously, which more or less confirms the relationship between the two.
The attackers used an improved version of the Remexi malware, previously associated with an APT threat actor that Symantec calls Chafer. This group has been observed since at least , but based on things such as compilation time-stamps, and C2 registration, it’s possible that the group has been active for even longer. Traditionally, Chafer has focused on targets inside Iran, although its interests clearly include other countries in the Middle East.
This data includes keystrokes, screenshots, and browser-related data such as cookies and history, decrypted where possible. The C2 is based on IIS using. We reported this to Microsoft on February 22, who confirmed the vulnerability and assigned it CVE Microsoft released a patch on March 12, , crediting Kaspersky Lab researchers Vasiliy Berdnikov and Boris Larin with the discovery.
Just as with CVE, we believe that this exploit is being used by several threat actors, including, but possibly not limited to, FruityArmor and SandCat.
We would urge organizations involved in the booming crypto-currency or technological startup industry to exercise extra caution when dealing with new third parties or installing software.
You should never set ‘Enable Content’ macro scripting in Microsoft Office documents received from new or untrusted sources. If you need to try out new applications, it’s better to do so offline or on an isolated network virtual machine which you can erase with a few clicks. The attackers added a backdoor to the utility and then distributed it to users through official channels. The compromised version of the utility was distributed to a large number of people between June and November Our telemetry shows that 57, Kaspersky Lab customers downloaded and installed it, although we believe the real scale of the problem is much bigger, possibly affecting over a million users worldwide.
The attackers hardcoded a list of MAC addresses in the Trojanized samples, which identifies the true targets of this massive operation. We were able to extract over unique MAC addresses from more than samples discovered in this attack, although it’s possible that other samples exist which target different MAC addresses. Some are even designed to steal money.
To do so, it disables the integrity check for installed extensions and automatic updates for the targeted browser. The Trojan works with Google Chrome, Mozilla Firefox and Yandex browsers, though it has different infection scenarios for each browser type. Razy spreads via advertising blocks on websites and is distributed from free file-hosting services under the guise of legitimate software. Razy serves several purposes, mostly related to the theft of crypto-currency.
Its main tool, the script ‘main. One recent example is the WinPot malware. The malware window displays the denomination of banknotes for each cassette, so that the money mule operating the malware just needs to select the cassette with the most money in it and press ‘Spin’.
The ‘Scan’ button can be used to recount the notes. The authors also include an emergency ‘Stop’ button, to allow the mule to cut short the pay out so as not to arouse suspicion. For example, some versions will only dispense cash for a limited period of time and then they deactivate themselves.
Earlier this year we detected one such campaign, when The Pirate Bay TPB tracker filled up with harmful files used to distribute malware under the guise of cracked copies for paid programs. The tracker contained malicious torrents created from dozens of different accounts, including those registered on TBP for quite some time.
This page opens directly in the installation window and requests the user’s TBP account credentials, supposedly to continue the process. The second downloaded component is also a SetupFactory installer, used to decrypt and run four PE files in sequence.
These usually find their way on to people’s computers through file sharing sites. Besides downloading the required content, their goal is to install additional software while carefully hiding the option to cancel. The auto-clickers are run before the installers: when the installer windows are detected, they check the boxes and click the buttons needed to give the user’s consent to install the unnecessary software.
The botnet is now equipped with a much wider range of exploits, which makes it even more dangerous and allows it to spread faster. This is no surprise since the Mirai source code was leaked some time ago, allowing any attacker with sufficient programming skills to use it. Collection 1 is just a small part of a bigger leak of about 1TB of data, split into seven parts and distributed through a data-trading forum. It includes the costs of investigating the breach, closing any security loopholes and maintaining business continuity.
On top of that, a company’s reputation can be affected, especially if it becomes clear that the company failed to take adequate steps to secure the personal data of its customers. The key to its success lies in sparking the curiosity of potential victims. Massive data leaks, such as the ones discussed above, help attackers to fine-tune their approach, making it more successful. Phishers will latch on to any topic that they think will pique the interest of their victims. The original website asks volunteers to provide their full name, personal ID, cell phone number, and whether they have a medical degree, a car, or a smartphone, and also their location.
The volunteers sign up and then receive instructions on how to help. The scariest aspect was that these two different domains, with different owners, were resolved within Venezuela to the same IP address, belonging to the fake domain owner. In , we blocked , crypto-ransomware attacks on computers protected by Kaspersky Lab products, of which around , included corporate customers.
The malware encrypts data and displays a ransom note asking victims to get in touch to arrange decryption, in return for an unspecified payment in bitcoins. This path traversal zero-day vulnerability CVE enables attackers to specify arbitrary destinations during file extraction of ‘ACE’-formatted files, regardless of user input.
These include household objects such as TVs, smart meters, thermostats, baby monitors and children’s toys, as well as cars, medical devices, CCTV cameras and parking meters. Sadly, all too often we see reports of vulnerabilities in smart devices that could leave both consumers and organizations open to attack. They looked at three aspects: firmware, the handling of data and the security of data in the cloud.
However, they did find flaws in the development of the cloud infrastructure that could allow an attacker to gain access to data from the smart limb. The device, designed to connect to an Android or iOS smartphone using Bluetooth, is controlled through a special app, either locally or remotely.
On top of this, the app features a fully-fledged social network with group chats, photo galleries, friend-lists and more. The researcher was able to access the data of all users of the device, including usernames, passwords, chats, images and videos. Even worse, he was able to find a way to control the devices of other users.
There was no mechanism for updating the firmware. However, he was able to find interfaces on the device that the manufacturer had used for debugging purposes and forgotten to close. This was because of a secure privilege escalation vulnerability. The system failed to validate that the user had the appropriate permission to obtain admin control, so that an attacker with access to the watch’s credentials could change the permissions at the backend, exposing access to the account information and data stored on the watch.
However, it’s also vital that consumers consider security before buying any connected device. It also means looking online for information about any vulnerabilities that may have been reported and checking to see if it’s possible to update the firmware on the device.
Finally, it’s important to change the default password and replace it with a unique, complex password. We reported this new exploit to Microsoft in February and after confirmation that it is indeed a zero-day, it received the designation CVE It is an escalation of privilege EoP exploit that is likely used together with other browser exploits to escape sandboxes or get system privileges for further access.
In fact, over the past few years, we have built a multitude of exploit protection technologies into our products that have detected several zero-days, proving their effectiveness time and again. We will continue to improve defenses for our users by enhancing technologies and working with third-party vendors to patch vulnerabilities, making the internet more secure for everyone. In this blog we provide a technical analysis of the vulnerability and how the bad guys exploited it.
Contact: [intelreports kaspersky. Due to the lack of bounds checking, attackers are able to create a situation that allows them to write controlled data at a controlled offset using DirectComposition API. DirectComposition API is implemented by the win32kbase. For this to work, commands need to be written sequentially in a special buffer mapped by NtDCompositionCreateChannel syscall.
Each command has its own format with a variable length and list of parameters. This function is responsible for processing the SetResourceBufferProperty command. Checking something after a job is done is bad coding practice and can result in vulnerabilities. No check takes place that will ensure if the provided propertyId is less than the count of properties added to the resource. As a result, an attacker can use this function to perform an OOB write past the propertiesData buffer if it manages to bypass two additional checks for data inside the properties array.
This means that if you try to send a command with an invalid propertyId, NtDCompositionProcessChannelBatchBuffer syscall will return an error and the command will not be passed to the dwm.
The propertiesCount check in the kernel could be bypassed this way and malicious commands would be passed to Desktop Window Manager dwm. Create a large number of resources with properties of specific size to get heap into predictable state. Create additional resources with properties of specific size and content to spray memory at specific locations with fake properties.
Release resources created at stage 2. Create additional resources with properties. These resources will be used to perform OOB writes. Make holes among resources created at stage 1. Create additional properties for resources created at stage 4.
Their buffers are expected to be allocated at specific locations. Use OOB write vulnerability to write shellcode, create an object and get code execution. Inject additional shellcode into another system process. It was the fifth consecutive exploited Local Privilege Escalation vulnerability in Windows that we have discovered in recent months using our technologies.
The field is used to define the class of a window; all windows are divided into classes such as ScrollBar, Menu, Desktop and many others. More importantly, we were able to change the address for the window procedure that was executed immediately after our hook. Because our MENU-class window was not actually initialized, it allows us to gain control over the address of the memory block that is freed. The second stage PowerShell executes the final third stage, which is also a PowerShell script.
This helps the attacker gain full control over the victim’s system. The attacks used active bots to send malicious links to contacts in already infected smartphones. We are inclined to believe that cybercriminals are having problems luring victims to pages with malicious apps.
The most frequently encountered objects came from the RiskTool. The vast majority of files detected belonged to the Trojan-Dropper. Next came the Trojan-Dropper.
The AdWare. Agent Ewind Dnotua 4. If in Q4 the share of mobile banking Trojans was 1. Generic GenericML 4. Generic verdict Cloud technologies are deployed when the antivirus databases lack data for detecting a piece of malware, but the company’s cloud already contains information about the object.
This is basically how the latest malicious programs are detected. In Q1, this family was well represented in our Top four positions out of 20 3rd, 5th, 11th, 14th.
GenericML verdict 4. It is given to files detected by machine learning. But unlike the Trojan. GenericML verdict is given to files on the side of users of the company’s security solutions before such files go for processing. The latest threat patterns are now detected this way. These packers most often contain banking Trojans, including Asacub. The Lezok family is notable for its variety of distribution schemes, among them a supply chain attack, whereby the malware is sewn into the firmware of the mobile device before delivery to the store.
It is encountered both in standalone form and inside Hqwar droppers. The malware has extensive capabilities for countering dynamic analysis, and can detect being launched in the Android Emulator or Genymotion environment.
It can open arbitrary web pages to phish for login credentials. It uses Accessibility Services to obtain various rights and interact with other apps. The most commonly encountered malware in this country was Trojan.
It should be mentioned that Telegram is banned in Iran, so any of its clones are in demand, as confirmed by the infection statistics. Asacub family: five positions out of ten. The creators of this Trojan actively distributed samples throughout Q1. In particular, the number of users attacked by the Asacub. But even this high result was surpassed by Asacub. However, by the end of the quarter, the average daily number of attacked unique users had dropped below 1, Most likely, this was due not to decreased demand for the Trojan, but to cybercriminals’ transition to a two-stage system of infection using Hqwar droppers.
The most common infection attempts we registered in this country were by Trojan-Banker. Both types of malware are not exclusive to Australia, and used for attacks worldwide. Although new malware families for this platform are relatively rare, threats do exist for it, largely in the shape of adware. As many victims as possible. Meanwhile, the banners themselves can be shown in an arbitrary place on the screen at any time, be it in an open browser window, in a separate window in the center of the screen, etc.
Malware from the Shlayer family is distributed under the guise of Flash Player or its updates. Their main task is to download and install various advertising apps, including Bnodlero. After installation, they write themselves to the autoloader and run in the background. Pirrit family add extensions to the victim’s browser; some versions also install a proxy server on the victim’s machine to intercept traffic from the browser. It can basically download, unpack, and launch different files, as well as embed JS code with ads into web pages seen by the victim.
MacSearch is another family of advertising apps with extensive tools for interacting with the victim’s browser. Plus, it can download and install other apps without the user’s knowledge. As with other adware apps, all these actions have the aim of displaying ads in the victim’s browser. InstallCore family, having long perfected their tricks on Windows, transferred the same techniques to macOS.
The typical InstallCore member is in fact an installer more precisely, a framework for creating an installer with extensive capabilities of other programs that do not form part of the main InstallCore package and are downloaded separately.
Besides legitimate software, it can distribute less salubrious apps, including ones containing aggressive advertising. Geonei family is one of the oldest adware families for macOS.
It employs creator-owned obfuscation techniques to counteract security solutions. As is typical for adware programs, its main task is to display ads in the browser by embedding them in the HTML code of the web-page. What’s more, it can download and install other advertising apps. The most common infection attempts we registered in this country came from Trojan-Downloader.
Note that US residents also had to deal with advertising apps from the Climpi family. First, some Mirai samples were equipped with a tool for artificial environment detection: If the malware detected it was running in a sandbox, it stopped working. It works using templates, killing the process if its name matches that of the template. Note, however, that it has nothing to do with the qualities of the protocol. It is just that devices or servers managed through SSH are closely monitored by administrators and hosting companies, and any malicious activity is terminated.
This is one reason why there are significantly fewer unique addresses attacking via SSH than there are IP addresses from which the telnet attacks come. This is seen by the number of sessions in which cybercriminal servers interact with Kaspersky Lab’s traps.
In the overwhelming majority of cases involving intercepted sessions, we registered spam mailings, attempts to use our trap as a proxy server, and least often of all cryptocurrency mining. Second place by a small margin goes to China There is nothing surprising about this, and the situation could persist for a long time given Mirai’s universality.
Whereas last quarter the main targets were located in Australia and Poland, in Q3 organizations in Austria, Germany, and Italy were added. The malware was distributed through spam mailings with a malicious office document, which was used to download the main body of the Trojan. RTM Zbot Emotet 9. Trickster 6. Nymaim 5. Nimnul 4.
Microsoft windows server 2012 r2 standard local privilege escalation free download
They shared several files via Telegram that supposedly belonged to the OilRig threat actor. However, due to the large number of Gamma customers, this is probably only a fraction of the victims. Windows Server Update Services WSUS enables information technology administrators to deploy the latest Microsoft product updates to computers that are running the Windows operating system. An attacker must have valid logon credentials and be able to log on locally to exploit the vulnerability.
Microsoft windows server 2012 r2 standard local privilege escalation free download. Windows Privilege Escalation
Basically, this is the flaw that this bug exploits: If we have the power to modify our local user proxy, and Windows Updates uses the proxy configured in. Use-after-free vulnerability in the kernel-mode drivers in Microsoft Windows Server SP2 and R2 SP2, Windows Vista SP2, Windows Server SP2 and R2 SP1.