Hi Guys,
I would like to share a malware(Mal/Behav-043) that I encountered and how I managed to resolve it.
Symptoms: User's USB sticks were getting infected by Mal/Behav-043 and user's files were hidden in the flash drive but you are unable to see them
Resolve:
1) Unattach a network PC(with Sophos AV already installed) or any other PC that you would like to use(with Sophos AV Installed). Use a PC that does not contain any form of data or software installed.
2) Insert thumbdrive to PC and scan with Sophos AV if it was not scanned earlier. Once malware is detected and qurantined, do not do anything as yet.
3) Go to command Prompt ('Start' Button --> Run --> CMD)
Insert the following command: attrib -s -h -a /s /d F:\*.*
The command above will help to unhide all files hidden by the malware.
Source: http://stackoverflow.com/questions/8095002/windows-batch-script-to-unhide-files-hidden-by-virus
4) Go to Sophos Anti-Virus Qurantine and cleanup virus.
5) Reformat PC(Parnoid and extreme cases).
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