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Nasty, Nasty Variant of Antivirus Soft

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#1 mhmallory


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  • Local time:09:35 PM

Posted 02 February 2010 - 11:32 PM

I' m working on removing a nasty, nasty strain of Antivirus Soft. This strain is a little different infections I have seen. It has the following traits -

1). Programs cannot be installed from any source.

2). If I attempt to run Malware Bytes from a pen drive, I get an error of - Unable to write Registry ( running as administrator).

3). If I add a user from command prompt, with net user, and add that user ID to the Administrator group with net localgroup command, this new user ID cannot write to registry.

4). I' am denied access to "Administrative Tools", "Local Security Policy".

5). Cannot write registry from safe mode.

6). I attempted to use latest version of Combofix, but it cannot install because it cannot access registry.

It appears that Antivirus Soft has changed read/write permission on the registry. I can run an existing installed copy of Malware Bytes with definitions that are 30 days or so old, no virus is detected. Right now, I'm making a image copy of the infected computer with Acronis to a network drive.

What should I try next? Should I manually attempt to edit the registry keys and remove affected keys?


My mistake - This is a XP SP2 Desktop :thumbsup:

Edited by mhmallory, 03 February 2010 - 12:22 AM.

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