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From: Razi Shaban (razishabangmail.com)
Date: Thu Mar 27 2008 - 08:54:07 CDT
I have enough experience with UPX to know that it's a fairly good packer.
If you placed the backdoor into the code yourself, I'm not surprised
that the packed version is UD by most virus-scanner.
Doesn't make it any less of a backdoor.
On 3/27/08, zwell.nosec <zwell.nosecgmail.com> wrote:
> Just do it yourself pls, using the "backdoored" pangolin.exe you think and
> decompress it, then upload to virustotal, I did not change any bits ;)
> 发件人: Razi Shaban [mailto:razishabangmail.com]
> 发送时间: 2008年3月27日 14:32
> 收件人: zwell.nosec
> 抄送: full-disclosurelists.grok.org.uk; websecuritywebappsec.org
> 主题: Re: [Full-disclosure] The reason why "Pangolin is backdoor"
> Wow! Cryptors prevent viruses from being detected?
> Who would have thought!
> On 3/27/08, zwell.nosec <zwell.nosecgmail.com> wrote:
> > Pangolin really is a backdoor? Let's do this step to make sure:
> > 1.Download UPX from upx.sf.net
> > 2.In cmd shell, run "upx.exe -d pangolin.exe"
> > 3.Upload the new pangolin.exe(actually the origin) to virustotal
> > 4.Check the result again
> > I do these, and the result is:
> > http://www.virustotal.com/analisis/b9d55c751d5eed7b34cda3fe708b1bd7
> > We can see
> > er,Webwasher-Gateway will not alert any more.
> > You judge what is it! Or maybe we should think about what does these
> > Antivirus do???
> > Thanks ;)
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