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Microsoft Security Intelligence
500 entries found. Displaying page 1 of 25.
Updated on Oct 07, 2008
Alert level: high
Updated on Jun 09, 2011

Virus:Win32/Expiro.AA is the detection for a virus that infects EXE files in all drives and collects user credentials from an infected computer. It also allows backdoor access and control to the infected computer, and lowers Internet Explorer settings.

Alert level: severe
Updated on Apr 11, 2011
Exploit:Java/CVE-2010-0094.AA is the detection for malicious Java applet stored within a Java Archive (.JAR) that attempts to exploit a vulnerability in the Java Runtime Environment (JRE) up to and including version 6 update 18. The vulnerability allows an unsigned Java applet to gain elevated privileges and potentially have unrestricted access to a host system, outside its "sand box" environment.
Alert level: severe
Updated on Apr 11, 2011
Worm:Win32/Vobfus.AA is a worm - a self-propagating program that can spread itself from one computer to another. Worms may spread themselves via a variety of different channels in order to compromise new computers. Commonly, worms may spread directly by copying themselves to removable or network drives, or by attempting to exploit particular vulnerabilities on targeted computers. Worms also often attempt to spread via platforms that require user interaction in order to run. They may send themselves as an attachment to an email or an instant message, or send a link to a copy of themselves in the body of a message. In these cases the message needs to be convincing enough to encourage the victim to click on the link or attachment and run or download a copy of the worm.
Alert level: severe
Updated on Dec 07, 2011

Trojan:Win32/Sefnit.AA is a trojan that may monitor Internet Explorer or Mozilla Firefox to hijack the search results for various search engines.

Alert level: severe
Updated on Sep 02, 2013

Trojan:Win64/Sirefef.AA is a user-mode component of the Sirefef malware family and runs on the 64-bit version of Windows. Sirefef is a multi-component family that performs different functions, such as downloading updates and additional Sirefef components, hiding existing Sirefef components or performing a payload. This malware moderates your Internet experience by changing search results, and generating pay-per-click advertising revenue for the malware controllers.

For more information about the Sirefef family, see the description for Win32/Sirefef elsewhere in the encyclopedia.

Alert level: severe
Updated on Mar 23, 2023
Alert level: severe
Updated on Mar 14, 2013

Backdoor:Win32/IRCbot.gen!AA is a worm that allows backdoor access and control of your computer by a remote server.

Alert level: severe
Updated on Apr 11, 2011
Exploit:Java/CVE-2010-0840.AA is the detection for an obfuscated malicious Java class applet component that exploits the vulnerability described in CVE-2010-0840. Successful exploitation leads to remote code execution.
Alert level: severe
Updated on Aug 17, 2011
VirTool:Win32/Injector.AA is a generic detection for malicious files that are obfuscated using particular techniques to protect them from detection or analysis.
Alert level: severe
Updated on Apr 11, 2011
Worm:AutoIt/Autorun.AA is a worm - a self-propagating program that can spread itself from one computer to another. Worms may spread themselves via a variety of different channels in order to compromise new computers. Variants of Worm:Win32/Autorun usually spread using methods that include, but may not be limited to, copying themselves to removable or network drives, and placing an autorun.inf file in the root directory of each affected drive in an attempt to ensure that the worm is run when the removable drive is attached, or the network drive is visited from a remote system supporting the Autorun feature.
Alert level: severe
Updated on Oct 26, 2011
VirTool:Win32/CeeInject.AA is a generic detection for malicious files that are obfuscated using particular techniques to protect them from detection or analysis.
Alert level: severe
Updated on Mar 23, 2023
Alert level: severe
Updated on Nov 22, 2010
This detection covers some variants of malware that is also detected as Backdoor:Qakbot.gen!A. See that description for more information.
Alert level: severe
Updated on Apr 11, 2011
VirTool:Win32/VBInject.AA is a generic detection for malicious files that are obfuscated using particular techniques to protect them from detection or analysis.
Alert level: severe
Updated on Apr 11, 2011
VirTool:Win32/VBInject.gen!AA is a generic detection for malicious files that are obfuscated using particular techniques to protect them from detection or analysis.
Alert level: severe
Updated on Apr 11, 2011
Worm:Win32/Slenping.AA is a worm that spreads via removable drives and messaging software, and contains backdoor functionality.
Alert level: severe
Updated on Apr 11, 2011
Worm:Win32/Slenfbot.AA is a worm that can spread via MSN Messenger. The worm also contains backdoor functionality that allows unauthorized access to an affected machine. This worm does not spread automatically upon installation, but must be ordered to spread by a remote attacker.
Alert level: severe
Updated on Sep 02, 2013

Trojan:Win32/Sirefef.AA is a component of Win32/Sirefef - a multi-component family of malware that moderates an affected user's Internet experience by modifying search results, and generates pay-per-click advertising revenue for its controllers. The family consists of multiple parts that perform different functions, such as downloading updates and additional components, hiding existing components, or performing the payload.

Alert level: severe
Updated on Sep 25, 2013
This program was detected by definitions prior to 1.159.567.0 as it violated the guidelines by which Microsoft identified unwanted software. Based on analysis using current guidelines, the program does not have unwanted behaviors.
Alert level: severe