Removed: C:\Program Files\winlogon.exe (trojan Kazy)

December 17, 2010 by NightWatcher
Filed under: Malware 
: Solved!

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Malware: firefox-toolbar.exe

Removed: C:\Program Files\winlogon.exe

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Detected by UnHackMe:

Item Name: 127.0.0.1 avp.com
Author: Unknown
Related File:
Type: Hosts File Contents

Item Name: 127.0.0.1 customer.symantec.com
Author: Unknown
Related File:
Type: Hosts File Contents

Item Name: 127.0.0.1 dispatch.mcafee.com
Author: Unknown
Related File:
Type: Hosts File Contents

/…/

Item Name: Windows Live Guards
Author: Microsoft
Related File: C:\PROGRAM FILES\WINLOGON.EXE
Type: Registry Run

Item Name: winlogon.exe
Author: Microsoft
Related File: C:\PROGRAM FILES\WINLOGON.EXE
Type: Running Processes

Removal Results: Success
Number of reboot: 1

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How to quickly detect malware presence?

Registry: HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Windows Live Guards
Value: “C:\Program Files\winlogon.exe”

Folders:
C:\Program Files\KAZAA
C:\My Downloads
Files:
C:\Documents and Settings\Administrator\Application Data\google_x1[s7_4]rk-h.tmp
C:\Documents and Settings\Administrator\Application Data\google__x1[s7_4]rk-h.tmp
C:\Program Files\winlogon.exe
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Classification:

Antivirus Version Last Update Result
F-Secure 9.0.16160.0 2010.12.16 Gen:Variant.Kazy.2959
Kaspersky 7.0.0.125 2010.12.16 -
Microsoft 1.6402 2010.12.16 -
NOD32 5707 2010.12.16 -

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MD5 806f308fe25491495a5158239d9d47d3

SHA1 7f3dc2936a31aa34d32ad37b11c9a6f9e60c6fc5

SHA256 e6c20d782b25338ddab7ac97ec2a3881fd4890362bdc579b4ecc82b0e998299a

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Installation
When the program is executed, it creates the following registry subkeys and values:

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Values added:3
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HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Windows Live Guards: “C:\Program Files\winlogon.exe”
HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\Windows Live Guards: “C:\Program Files\winlogon.exe”
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\Windows Live Guards: “C:\Program Files\winlogon.exe”

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Files added:3
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C:\Documents and Settings\Administrator\Application Data\google_x1[s7_4]rk-h.tmp
C:\Documents and Settings\Administrator\Application Data\google__x1[s7_4]rk-h.tmp
C:\Program Files\winlogon.exe

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Files [attributes?] modified:1
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C:\WINDOWS\system32\drivers\etc\hosts

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Folders added:2
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C:\Program Files\KAZAA
C:\My Downloads

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Total changes:9
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Recommended software:
UnHackMe anti-rootkit and anti-malware
http://www.unhackme.com
RegRun Security Suite (Good choice for removal and protection)
http://www.regrun.com


Recommended: UnHackMe anti-rootkit and anti-malware

Premium software: RegRun Security Suite (Good choice for removal and protection)

Written by

Malware Hunter.

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