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Trojan...i Think

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#1 Bongo Pete

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Posted 23 October 2006 - 03:33 PM

well, i just turned on my computer earlier today, and it was running horribly slow, and whenever i opened something it wouldn't open up, like firefox.exe was there like 4 times, so i had to end all of them and then open it again, then it finally worked...anyways i checked the task manager to see what was open, and it was all the same stuff except something called "guard.exe"...so i typed it into google to see if i can find something about it, it came up with something about a program called Ewido, but i don't have that program :thumbsup:

so i checked my windows folder too look around, and i see files called "twain.dll" "twain_32.dll" "twunk.16.exe" and "twunk_32.exe". I looked up on googled for those and it said it was a worm or something. Whenever i try and delete it, all they do is re-appear 15 seconds later.

so does anyone know if theres something wrong? or am i just getting worked up over nothing

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#2 quietman7


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Posted 23 October 2006 - 05:53 PM

What OS (Win XP/2000, etc) are you using? What type of anti-virus are you using and when was the last time you ran a scan? Have you performed any anti-spyware scans? Are you using AVG Anti-Spyware? If so, it is Ewido Anti-malware 4.0 renamed. It contains the same ewido technology and uses guard.exe.

Anytime you come across a suspicious file your not sure about you can go to jotti.org or to virustotal.com.
Browse to the location of the suspicious file and submit [upload] it for scanning/analysis.
The results of the file analysis will tell you if the file is bad.

You can also check the File Database.

For info on legit twain and twunk files, see here.

Company: Twain Working Group
Description: Twain_32.dll Client's 16-Bit Thunking Server

Company: Twain Working Group
Description: Twain.dll Client's 32-Bit Thunking Server

Company: Twain Working Group
Description: Twain Source Manager (Image Acquisition Interface)

Company: Twain Working Group
Description: Twain_32 Source Manager (Image Acquisition Interface)

Company: Microsoft Corporation
Description: WIATWAIN

If your computer seems to be slow, read Slow Computer Checklist. There are reasons for slowness besides malware - i.e. too many startup programs, to many programs open at one time, unnecessary services running, not enough RAM etc. Further, as your system gets older it becomes filled with more files/programs and has a natural tendency to slow down.
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