Unfortunately it has come to light that the program ComboFix had a file in it that is infected with the Sality virus. The minute we heard about this, we pulled the executable so that it is no longer available from BleepingComputer.com. Unfortunately we have no control over other sites that may have mirrored ComboFix without permission, so please do not attempt to download it elsewhere.
The developer, sUBs, is currently looking into what happened and when I have a full update, I will be sure to let you know. From the limited information that I have, it appears that the affected version has been available since approximately 2am EST on January 29th, but it may have been earlier. If this timeframe changes, I will update this topic to let you know. If you have used ComboFix in the last day or so, then you should examine your system for possible infection. If you have used a copy of ComboFix prior to this version, then you should be ok.
SHA256 Hashes of known affected versions are:
In the meantime, it is important for those who may have used ComboFix recently and are concerned they are infected to get the help they need. As the Sality infection has been around for a while, almost all antivirus vendors will have detected it and blocked it when you ran ComboFix. Unfortunately, not everyone has up-to-date virus definitions or uses an AV program, so it is important to examine your system if you have used CF since 2am EST.
The steps we suggest you take to make sure your computer is not infected are:
- Scan your computer with ESET's Online Scanner. [Temp Locally Hosted Version]
- Download and scan your computer with the Kaspersky Rescue Disk [Temp Locally Hosted Version]
- Use SalityKiller if you are unable to use the above tools for some reason. When using this tool, you should disconnect from your network first. [Temp Locally Hosted Version]
If you need help with any of these steps, or would like us to check your computer, please feel free to ask us in the forums. You can either post in the Am I infected? forum or create a virus removal assistance topic in the Virus, Trojan, Spyware, and Malware Removal Logs forum using steps.
We are here to help you, so please do not hesitate to ask.
I sincerely apologize for any issues this may have caused and assure you that we will do our utmost to help anyone who may have been affected by this situation.