W32/Sality.Y - Malware

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Summary

Full description

Statistics

Virus:	W32/Sality.Y
Date discovered:	06/08/2008
Type:	File infector
In the wild:	Yes
Reported Infections:	Low to medium
Distribution Potential:	Medium
Damage Potential:	Medium to high
Static file:	No
IVDF version:	7.00.05.207
Engine version:	8.01.01.018

General Methods of propagation:
   • Local network
   • Mapped network drives

Aliases:
   • Symantec: W32.Sality.AE
   • Mcafee: W32/Sality.gen
   • Kaspersky: Virus.Win32.Sality.aa
   • TrendMicro: PE_SALITY.JER
   • F-Secure: Virus.Win32.Sality.aa
   • Sophos: W32/Sality-AM
   • Panda: W32/Sality.AK
   • VirusBuster: Sality.AQ.Gen
   • Bitdefender: Win32.Sality.OG

Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Lowers security settings
   • Registry modification

File infection Method:
This memory-resistent infector remains active in memory.

Infection length:
Approximately 70.000 Bytes

The following files are infected:
By file type:
• .EXE

Registry The value of the following registry key is removed:

– [HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot]

It creates the following entry in order to bypass the Windows XP firewall:

– [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\
   FirewallPolicy\StandardProfile\AuthorizedApplications\List]
   • "c:\\%filename%"="c:\\%filename%:*:Enabled:ipsec"
   • "c:\windows\\system32\\ctfmon.exe"="c:\windows\\system32\\ctfmon.exe:*:Enabled:ipsec"

The following registry key is added:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\system]
   • "DisableTaskMgr"=dword:00000001
   • "DisableRegistryTools"=dword:00000001

The following registry keys are changed:

– [HKLM\SOFTWARE\Microsoft\Security Center]
   Old value:
   • "AntiVirusDisableNotify"=dword:00000000
   • "FirewallDisableNotify"=dword:00000000
   • "UpdatesDisableNotify"=dword:00000000
   • "AntiVirusOverride"=dword:00000000
   • "FirewallOverride"=dword:00000000
   New value:
   • "AntiVirusDisableNotify"=dword:00000001
   • "FirewallDisableNotify"=dword:00000001
   • "UpdatesDisableNotify"=dword:00000001
   • "AntiVirusOverride"=dword:00000001
   • "FirewallOverride"=dword:00000001
   • "UacDisableNotify"=dword:00000001

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
   Old value:
   • "Hidden"=dword:00000001
   New value:
   • "Hidden"=dword:00000002

See a brief description here.

Description inserted by Alexander Vukcevic on Wed, 28 Jan 2009 07:45 (GMT+1)
Description updated by Andrei Gherman on Wed, 16 Dec 2009 11:33 (GMT+1)

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