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Malicious Software Removal Tool
Microsoft Security Essentials
Security Intelligence Report
Microsoft Malware Protection Center assists in disrupting Ramnit
Recent disruption of the Ramnit malware family was successful due to a multinational collaboration, led by Europol’s European Cybercrime Center (EC3), in partnership with Financial Services and Information Sharing & Analysis Center (FS-ISAC), Symantec, AnubisNetworks, Microsoft’s Digital...
25 Feb 2015
MAPS in the cloud: How can it help your enterprise?
Malware can easily send a huge enterprise infrastructure into a tailspin. However, you can get greater protection from malware by using services in the cloud. Yes, there’s an opportunity to get real-time results from suspicious malware triggers where your system can: Consult the cloud...
21 Jan 2015
MSRT Tackles Fake Microsoft Security Essentials
We've seen a few rogue security programs use elements of legitimate security software in order to try to make themselves appear more authentic. It was inevitable that Microsoft Security Essentials would be the target of this kind mimicry. While some rogues have simply copied Security Essentials' name...
9 Nov 2010
Are you beta testing malware?
This post is part one of two. Popular games are often used by malware writers as social engineering bait as documented in previous blogs (" Dota Players Own3d " and " Keeping Kerrigan From Infection "). So, with a watchful eye for anything related to games used as an infection vector, we came across...
7 Jan 2012
MSRT January ‘11: Win32/Lethic
Win32/Lethic is a trojan that communicates with a remote server to distribute spam. Variants of Lethic install executable files with varied file names such as “ shelldm.exe ” or “ xcllsx.exe ”. The malware loads as a process when Windows starts. The trojan establishes a connection to remote servers using...
12 Jan 2011
Facebook offers Microsoft Security Essentials as a security solution
We’re very excited to announce that Microsoft has teamed up with Facebook to offer Windows users free malware protection with Microsoft Security Essentials. Since May 1st, Facebook users have had the choice of downloading and installing Microsoft Security Essentials as their security solution....
4 May 2012
Mobile threats on the desktop
The MMPC has been routinely monitoring threats (via the desktop) that affect different mobile platforms such as Symbian, Java ME, Android, RIM, iOS and Windows Mobile. One of the increasingly common ways we see mobile devices being compromised is by allowing the user to download and install applications...
20 Oct 2011
MSRT June Release, taking care of a few worm families
In this month's MSRT release, we added three new threat families to the detection capability. One of these three is Win32/Nuqel , which has been around for four years since its first variant was found. More than 60 variants of Win32/Nuqel have been identified in the wild. This worm spreads itself via...
14 Jun 2011
Bredolab Takedown, Another Win for Collaboration
Earlier this week (October 25), authorities in the Netherlands took action against one of the Win32/Bredolab botnets and person(s) who may be responsible for this threat as part of an investigation codenamed TOLLING- part of a larger project named TAURUS. This follows on the heels of similar efforts...
27 Oct 2010
MSRT December: If it quacks like a bot, it's probably Qakbot.
This month, the MSRT team has added the Win32/Qakbot family of backdoors to its detections. Qakbot is composed of several components, including a keylogger, a password stealer and a user-mode rootkit. Qakbot is commonly distributed as the payload of what appear to be attacks, mainly targeted...
14 Dec 2010
New: Microsoft Security Intelligence Report Volume 11- Now Available
Hi, again everyone! Today we released the 11th volume of the Microsoft Security Intelligence Report , also known as SIRv11. I have to say once again we’ve outdone ourselves and launched the largest and most comprehensive version of this report to date. This time it’s over 800 pages of threat...
11 Oct 2011
Microsoft Security Essentials beta registration opens
Today we announce that the Beta for the next version of Microsoft Security Essentials is open for registration. Do you want to try out our latest innovations in protection and performance? Are you interested in helping to improve Security Essentials? The number of users than can participate...
18 Nov 2011
A Happy Thanksgiving from Rebhip?
A day before Thanksgiving, as I was doing my work, I came across a sample (SHA1:b9b52db22d35c50081054d4ece39f520ae3ef9fe) from a customer submission, with the usual " ecard.exe " filename. It has an image icon but with an .EXE extension; a clear sign of malicious intent. As I further investigated...
24 Nov 2010
re-BOOT This Year Clean
It is that time of the year again to start anew. In terms of personal computers, the act of restarting the machine is called a reboot – an action that triggers execution of code from a special part of the disk called the Master Boot Record (a.k.a. MBR). As the year 2010 ended, I looked at some of the...
15 Jan 2011
Presenting... the Microsoft Safety Scanner
We have just released a new tool called Microsoft Safety Scanner to help you diagnose if your computer is infected and clean it if possible. It is available from www.microsoft.com/security/scanner . The old online safety scanner from safety.live.com also now points to www.microsoft.com/security/scanner...
12 May 2011
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