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Some questions about anti-spyware programs detections

 
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JVMA
Technical Research Expert


Joined: 13 Jul 2004
Last Visit: 08 Sep 2005
Posts: 49

PostPosted: Wed Jul 28, 2004 9:33 am    Post subject: Some questions about anti-spyware programs detections Reply with quote

The antispyware programs use CLSI detections, and by them search the file asociated in the system?

There are spyware that use the same CLSID as the windows or other program? and a virus?
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JVMA
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Scaramouche
Malware Expert


Joined: 06 Jul 2004
Last Visit: 03 May 2006
Posts: 141
Location: Manila, Philippines

PostPosted: Fri Jul 30, 2004 12:26 am    Post subject: Reply with quote

It depends on what you're talking about. I think CLSID identification is really only useful for BHOs, and even then as you point out, there's nothing stopping someone from using the same one as an existing program (many of them simply use 00000000000000).

Traditional installed/ridealong spyware though is usually detected through file name/folder/size/version/infile textstring/other comparison to a database of collected attributes. This is where most spyware is identified, though each anti-spyware company has their own weighting/method of getting useful information from it. Getting just one 'hit' is rarely cause for a 'strong' match, though each program has differing levels of sensitivity.
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