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False Positives in antivirus-programs

#31 User is offline   quietman7 

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Posted 06 December 2011 - 07:25 AM

avast detecting sfloppy.sys as hidden rootkit.

There have been numerous reports of this detection since early this morning.

As reported in this topic: Rootkit hidden filefloppy sys, the detection appears to be a false positive as of the last database update. Since many of our members use avast, I wanted to post the information so everyone is aware.

I received the same notification after booting up an hour ago and the database was updated. I submitted the file to virustotal and it came back clean so I choose to ignore it. No official confirmation from avast yet but users should monitor the topic for further replies.
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#32 User is offline   quietman7 

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Posted 07 December 2011 - 08:49 AM

Quote

Reply #67 from Milos: Yesterday at 02:58:10 PM

Hello,
the issue (causing false positive) was resolved. VPS will be released asap.

Milos

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#33 User is offline   archer12 

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Posted 13 January 2012 - 09:06 AM

Had a problem with Avast this morning:

Version: 6.0.1367 FREE
Virus Definition: 12112-1

Downloading Combofix...

From Web Log:
1/13/2012 7:54:59 AM
http://download.bleepingcomputer.com/sUBs/ComboFix.exe|>$0\pev.3XE|>[PECompact]
[L] Win32:Rootkit-gen [Rtk] (0)

FYI

Archer12

#34 User is offline   quietman7 

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Posted 13 January 2012 - 09:30 AM

avast! has been reporting it as Win32:Rootkit-gen for the past three days now. See here .

Read my reply to another user as to why.

The problem is really with the anti-vendors who keep targeting these embedded files and NOT with ComboFix. We can inform the developer but he has encountered this issue many times before and in most cases there isn't much he can do about it. Once the detection is reported to the anti-virus vendor, they are usually quick to fix it by releasing an updated definition database but avast is taking longer this time.
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#35 User is offline   archer12 

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Posted 13 January 2012 - 09:37 AM

The problem has been rectified:

Avast Update

Definition update: 120113-0

Thanks

archer12

#36 User is offline   dev00790 

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Posted 11 March 2012 - 08:32 AM

Antivirus: Avast
Version: 7.0.1426 Free
Virus Definition: 120310-2

Scan Log:
11/03/2012 12:00:00

Infected files: 1

Process 888 [rapportmgmtservice.exe], memoryblock 0x0000000000400000, block size 937984 (RapportMgmtService.exe)
Severity: High
Threat: Win32:MalOb-JN[Cryp]

Screenshot of avast log

dev0070
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#37 User is offline   Yiddish 

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Posted 13 March 2012 - 11:15 PM

Oh! ya it's really good idea, Many people will come to know about.

#38 User is offline   dev00790 

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Posted 29 April 2012 - 06:34 AM

Antivirus: Avast
Version: 7.0.1426 Free
Virus Definition: 120429-0

Web Shield Log:
29/04/2012

URL: http//oldtimer.geekstogo.com/OTL.exe
Severity: High
Threat: Win32:Rootkit-gen [Rtk]
Action: Blocked

Screenshot of popup

edit: typo

This post has been edited by dev00790: 29 April 2012 - 06:35 AM

Regards, dev00790
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Marge: "Homer, the plant called. They said if you don't show up tomorrow don't bother showing up on Monday." Homer: "Woo-hoo! Four-day weekend!"
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