sammysnake
Never Forget 911
Premium
join:2002-01-19
Salt Lake City, UT
|  False Positive with AVG Free?
I turned on my computer today and in the history log of AVG Free I had the following listed:
"2007/07/16 16:07:29" user="SYSTEM" source="Virus"
@HL_ReportFindRS filename> C:\WINDOWS\system32\drivers\mchInjDrv.sys
finding > @EID_Id_trj
virusname > BackDoor.Generic7.NZJ
Now I do a complete scan with AVG Free, AVG Anti-Spyware, Ad-Aware, Spybot, Windows Defender, and Trojan Hunter on a weekly basis every Friday night. All of these scans were done on 7/13 and all came up clean. The computer was not even turned on over the weekend.
I got the above after doing a manual update of AVG Free after turning on the computer this evening. No one had access to the computer all weekend.
Just for the hell of it I have redone all of the above scans and they all come up clean.
This has got me baffled. 
Any suggestions?
Sammy  |
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ezdsl
join:2002-03-13
Austin, TX
| I checked my AVG log and found what was reported to be a virus (don't remember exactly which as I'm at work at the moment) logged over the weekend.
Today, I ran a full scan and nothing was found. I checked the AVG forums (»forum.grisoft.cz/freeforum/list.php?4) and found several false positives in the last couple of days.
Glitch on a weekend update? Maybe??? |
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caffeinator
Coming soon to a cup near you..
Premium
join:2005-01-16
Spokane, WA
 ·WebBand
2 edits | reply to sammysnake
It's "MadCodeHook" tool from a legit company, and can/may be used by malware...but is also used by legit programs.
Found this:
»www.softwaretipsandtricks.com/da···sys.html
quote:
MchInjDrv.sys is a driver for injecting code to other processes.
Publisher is legitimate:
»madshi.net
But it is often used by malicious software.
Kill the file mchInjDrv.sys and remove mchInjDrv.sys from Windows startup.
Another thread at Kaspersky: »forum.kaspersky.com/lofiversion/···351.html
I guess it depends on what you have installed, or may have installed recently.
You could try uploading to Jotti or Virustotal for more checks.
-CaFF
--
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - A. Einstein
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sammysnake
Never Forget 911
Premium
join:2002-01-19
Salt Lake City, UT
| said by caffeinator  :It's "MadCodeHook" tool from a legit company, and can/may be used by malware...but is also used by legit programs. Found this: » www.softwaretipsandtricks.com/da···sys.html quote:
MchInjDrv.sys is a driver for injecting code to other processes.
Publisher is legitimate:
»madshi.net
But it is often used by malicious software.
Kill the file mchInjDrv.sys and remove mchInjDrv.sys from Windows startup.
Another thread at Kaspersky: » forum.kaspersky.com/lofiversion/···351.htmlI guess it depends on what you have installed, or may have installed recently. You could try uploading to Jotti or Virustotal for more checks. -CaFF I would attempt to uplaod to Jotti or Virustotal but I do not have a file called "mchInjDrv.sys" anywhere on my system. |
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