Virus Profile: ZeroAccess.gy!CB1AFD1AF875

Threat Search
Print
   
Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 10/4/2012
Date Added: 10/4/2012
Origin: Unknown
Length: 208896
Type: Trojan
Subtype: -
DAT Required: 6855
Removal Instructions
   
 
 
   

Description

This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Indication of Infection

This symptoms of this detection are the files, registry, and network communication referenced in the characteristics section.

Methods of Infection

Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.

   

Virus Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionZeroAccess.gy
Length208896 bytes
MD5cb1afd1af8755b0f9cd74d4448e8fde8
SHA19980bd4f19d3e0fad9ca5fdf61bdbe7a1f38f43e


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:MalOb-IJ
AVG (GriSoft)Cryptic.EGT
aviraTR/Crypt.XPACK.Gen
BitDefenderGen:Heur.PIF.3
Dr.WebBackDoor.Maxplus
FortiNetW32/Birele.VEJ!tr
MicrosoftTrojan:Win32/Sirefef.P
SymantecTrojan.Zeroaccess!g14
EsetWin32/Kryptik.ALUC trojan (variant)
pandaTrj/Xpacked.A
SophosMal/ZboCheMan-D

Other brands and names may be claimed as the property of others.


ActivitiesRisk Levels
Attempts to write to a memory location of a protected process.High
Attempts to write to a memory location of a Windows system processHigh
Enumerates many system files and directories.Low
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaZeroAccess.gy
McAfee SupportedZeroAccess.gy



System Changes

Some path values have been replaced with environment variables as the exact location may vary with different configurations.
e.g.
%WINDIR% = \WINDOWS (Windows 9x/ME/XP/Vista/7), \WINNT (Windows NT/2000)
%PROGRAMFILES% = \Program Files


The following files were analyzed:

9980bd4f19d3e0fad9ca5fdf61bdbe7a1f38f43e

The following files have been added to the system:

  • C:\RECYCLER.{[SID]}\S-1-5-18\$d44964d7a019378819b453708c0fc651\n
  • C:\RECYCLER.{[SID]}\S-1-5-21-1482476501-[private subnet]522115-500\$d44964d7a019378819b453708c0fc651\@
  • C:\RECYCLER.{[SID]}\S-1-5-21-1482476501-[private subnet]522115-500\$d44964d7a019378819b453708c0fc651\n
  • C:\RECYCLER.{[SID]}\S-1-5-18\$d44964d7a019378819b453708c0fc651\@
  • %WINDIR%\assembly\GAC\Desktop.ini

The following registry elements have been changed:

  • HKEY_CURRENT_USER\CLSID\{FBEB8A05-BEEE-4442-804E-409D6C4515E9}\INPROCSERVER32\THREADINGMODEL = Both
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\NAMESPACE_CATALOG5\CATALOG_ENTRIES\000000000001\LIBRARYPATH = mswsock.dll
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\NAMESPACE_CATALOG5\CATALOG_ENTRIES\000000000003\LIBRARYPATH = mswsock.dll
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000001\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000002\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000003\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000004\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000005\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000006\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000007\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000008\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000009\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000010\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000011\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000012\PACKEDCATALOGITEM = [binary data]
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\WINSOCK2\PARAMETERS\PROTOCOL_CATALOG9\CATALOG_ENTRIES\000000000013\PACKEDCATALOGITEM = [binary data]

The applications attempted the following network connection(s):

  • 213.108.252.***:80
  • hxxp://forever-counters.com/5699145-24b8ebedaa47374020e664a2406fb684/*****
  • 208.91.207.**:80

   

All Users:

Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

1.Disable System Restore .

2.Update to current engine and DAT files for detection and removal.

3.Run a complete system scan.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

1. Please go to the Microsoft Recovery Console and restore a clean MBR.

On windows XP:

Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.


On Windows Vista and 7:

Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.

   

PC Infected? Get Expert Help

McAfee
Virus Removal Service

Connect to one of our Security Experts by phone. Have your PC fixed remotely - while you watch!

$89.95