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AVG - all ahk script infected
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crxvfr



Joined: 10 Mar 2006
Posts: 46

PostPosted: Tue Nov 06, 2007 4:38 pm    Post subject: AVG - all ahk script infected Reply with quote

Today when I came into work, all the compiled scripts I've written were flagged by AVG as having a trojan dropper generic.RQG. Why are the compiled ahk scripts being targeted or why are they vulnerable?
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me again
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PostPosted: Tue Nov 06, 2007 5:22 pm    Post subject: Re: AVG - all ahk script infected Reply with quote

crxvfr wrote:
Today when I came into work, all the compiled scripts I've written were flagged by AVG as having a trojan dropper generic.RQG. Why are the compiled ahk scripts being targeted or why are they vulnerable?


I read around a little. Perhaps this is a false positive created by avg's update? AVG updates everyday. hmmm.
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daonlyfreez



Joined: 16 Mar 2005
Posts: 744
Location: Berlin

PostPosted: Tue Nov 06, 2007 5:44 pm    Post subject: Reply with quote

Please report your findings to AVG
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crxvfr



Joined: 10 Mar 2006
Posts: 46

PostPosted: Tue Nov 06, 2007 6:30 pm    Post subject: Reply with quote

daonlyfreez wrote:
Please report your findings to AVG

Thanks, I do that. Can't live without ahk! ...but here is something of interest...

I recompiled the scripts from the source, replaced the offending exe's and re-scanned them with no detection of the trojan horse dropper. Also, the scripts alone, er um, ahk source code was never flagged.

Would this mean, ...the compiler is clean, the source code is clean but the compiled scripts were somehow more vulnerable or targeted?
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daonlyfreez



Joined: 16 Mar 2005
Posts: 744
Location: Berlin

PostPosted: Tue Nov 06, 2007 7:05 pm    Post subject: Reply with quote

It probably means AVG triggers on executables compiled with a previous version of AHK.
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Zippo()
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PostPosted: Wed Nov 07, 2007 3:06 am    Post subject: Reply with quote

AVG is really getting on my nerves lately.

I have 14 AHK compiled scripts in the virus vault, and a couple compiled programs that I've written in another language (one is made for DLL injection, so I can kind of understand that). It even added an .OBJ file to the vault.

It also decided to add FASMW.exe from the Flat Assembler.

And for good measure it threw in OLLYDBG.exe (my friggen debugger!).

Grrrrrrrrrr
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jballi



Joined: 01 Oct 2005
Posts: 319
Location: Texas, USA

PostPosted: Thu Nov 08, 2007 12:26 am    Post subject: Reply with quote

Zippo() wrote:
AVG is really getting on my nerves lately.
...
Grrrrrrrrrr

I too was having a problem with AVG and AHK yesterday. Today I downloaded the latest AVG signature files and everything seems to be OK. I also ran a scan of the latest AHK installation file, AutoHotkey104704_Install.exe, against Jotti's malware scan: http://virusscan.jotti.org/, and the scan found no malware.

Since AHK has a large community of users, these false positives usually get reported fairly quickly. Thanks to whomever reported this to AVG. You saved me the cost of an email. Cool
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Timothy
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PostPosted: Wed Nov 21, 2007 8:04 pm    Post subject: Reply with quote

AVG is now reporting all my scripts compiled with AutoHotkey 1.0.47.04 as trojan horse SHeur.ACWD. Is anyone else getting this problem?
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Timothy
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PostPosted: Sun Nov 25, 2007 11:07 pm    Post subject: Reply with quote

I have found that I get the problem if I use a True Color (24 bits) 32 x 32 custom icon for my compiled script. It doesn't happen if I use other types of icons.
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jballi



Joined: 01 Oct 2005
Posts: 319
Location: Texas, USA

PostPosted: Thu Jan 17, 2008 2:09 am    Post subject: Reply with quote

Timothy wrote:
I have found that I get the problem if I use a True Color (24 bits) 32 x 32 custom icon for my compiled script. It doesn't happen if I use other types of icons.


AVG just started to report the Trojan horse SHeur.ANBM for AutoHotkey v1.0.47.05 compiled scripts. But here's the weird part. AVG only reports a problem with compiled scripts with icons but only some icons give it the Heebie Jeebies. The size/True Color/etc. of the icon doesn't appear to be the right clue. Most of the icons I use are 32x32x24bit and some give me a problem and others do not.

Weird and wacky stuff...
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Guest






PostPosted: Sat Feb 02, 2008 5:35 pm    Post subject: Reply with quote

Hi there,

Just wanted to say that this is happening to me now too!

1st off If I compile with an .ICO file created in IconBuilder 1.1 with AVG2exe. I get the error message 'Error: Unable to create the compiled archive'.

2nd AVG then gives me a threat of Trojan horse SHeur.APYK.

It must be a false positive as even older .ICO's I've compiled before with no problem are coming up with the same message now.

I've even tried disabling AVG (risky) with no success. Is there perhaps another compiler I coud try to make this work? I'm going to try an icon file not created in IconBuilder.. If this doesnt work what do I do? PLEASE HELP!

TLM
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TheLaughingMan



Joined: 21 Aug 2006
Posts: 41

PostPosted: Sat Feb 02, 2008 5:47 pm    Post subject: Reply with quote

Ok I tried some ICO files from this site..

http://www.icongalore.com/software-icons/free-ico-icon.htm

The problem does not come up..

This is frustrating. Looks like it has something to do with Icon Builder. Must investigate futher..

(Sorry about the Guest post was not logged in)

TLM
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TheLaughingMan



Joined: 21 Aug 2006
Posts: 41

PostPosted: Sat Feb 02, 2008 10:16 pm    Post subject: Reply with quote

Ok after some investgation it looks like a false positive. AFAICT If you are using IconBuilder 1.1 you have to upgrade to 2.0. I tried the demo and I no longer get the same message from AHK2exe or Trogen alert from AVG. I'll be purchasing an upgrade next week..

HTH

tlm
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Yustec



Joined: 11 Feb 2008
Posts: 1
Location: Malaysia

PostPosted: Mon Feb 11, 2008 7:30 am    Post subject: New Trojan Strain... Reply with quote

Just now when I compiled a script, AVG reported that the compiled file contains 'Trojan horse SHeur.ASAW'. Is there any patch available for this?
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jballi



Joined: 01 Oct 2005
Posts: 319
Location: Texas, USA

PostPosted: Mon Feb 11, 2008 8:22 am    Post subject: Re: New Trojan Strain... Reply with quote

Yustec wrote:
Just now when I compiled a script, AVG reported that the compiled file contains 'Trojan horse SHeur.ASAW'. Is there any patch available for this?

I just got it too. AVG appears to be having a problem gettting/keeping their act together.

The problem appears to be with compiled scripts that are compressed. One temporary work-around (without disabling AVG) is to delete the upx.exe file in the AutoHotkey Compiler folder. Just rename it to something like upx.exe.old. You should be able to compile without getting the virus error. In a few days when AVG updates their signature files rename it back and give it another try.

Good luck to us all.


Edit 20080211_1540: I just discovered that compiling with an icon might also be a temporary work-around for this problem, depending on the icons. Some icons work OK while others don't make a difference.
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