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Virus Profile: W32/Hamweq.worm.au!8FF613A5900E

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 5/8/2012
Date Added: 5/8/2012
Origin: Unknown
Length: 159744
Type: Virus
Subtype: Win32
DAT Required: 6705
Removal Instructions
   
 
 
   

Description

Viruses are self-replicating. They are often spread by a network or by transmission to a removable medium such as a removable disk, writable CD, or USB drive. Viruses may also spread by infecting files on a network file system or a file system that is shared by another computer.

Indication of Infection

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

Methods of Infection

Viruses are self-replicating. They are often spread by a network or by transmission to a removable medium such as a removable disk, writable CD, or USB drive. Viruses may also spread by infecting files on a network file system or a file system that is shared by another computer.

   

Virus Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionW32/Hamweq.worm.au
Length159744 bytes
MD58ff613a5900e3a15e519f575e87767bd
SHA181098cb4995f15cda400bac518faab011ef3f2f2


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Rootkit-gen
AVG (GriSoft)Worm/VB.WBJ
aviraTR/Dropper.Gen
KasperskyWorm.Win32.VB.axh
BitDefenderTrojan.Generic.4155323
clamavWorm.VB-1130
Dr.WebTrojan.MulDrop.33198
F-ProtW32/VB.CRC
FortiNetW32/Refroso.AGEA!tr
MicrosoftBackdoor:Win32/IRCbot.gen!U
SymantecTrojan.Gen
EsetWin32/Injector.CRM trojan (probably variant)
normanw32/suspicious_gen2.cwyex
pandaTrj/Inject.FU
SophosMal/VBCheMan-A
Trend MicroWORM_VB.JKF
vba32Trojan.VBS.01583
V-BusterVirTool.VBInject!W61L/F1hL2Q (trojan)

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


ActivitiesRisk Levels
A protected process attempted to write to the memory location of another protected processHigh
Attempts to write to a memory location of a protected process.High
Attempts to write to a memory location of a Windows system processHigh
Attempts to connect to an IRC server. Can be used by bots to get instructions or send data to a remote server.Medium
Attempts to write to a memory location of a previously loaded process.Medium
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow
Adds or modifies Internet Explorer cookiesLow
Attempts to write to a memory location of an unknown processLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaW32/Hamweq.worm.au
McAfee SupportedW32/Hamweq.worm.au



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:

81098cb4995f15cda400bac518faab011ef3f2f2

The following files have been added to the system:

  • %WINDIR%\svchost.exe
The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\RUN\
The following registry elements have been changed:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\SYSDIAG64.EXE = %WINDIR%\svchost.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\RUN\MICROSOFTCORP = %WINDIR%\svchost.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\MICROSOFTNAPC = %WINDIR%\svchost.exe
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\DONOTALLOWEXCEPTIONS = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\LIST\%TEMP%\81098CB4995F15CDA400BAC518FAAB011EF3F2F2 = %TEMP%\81098cb4995f15cda400bac518faab011ef3f2f2:*:Enabled:Windows Messanger
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\AUTHORIZEDAPPLICATIONS\LIST\%WINDIR%\SVCHOST.EXE = %WINDIR%\svchost.exe:*:Enabled:Windows Messanger
The applications attempted the following network connection(s):

  • 38.229.84.*:6667 (irc) : NICK TsGh{USA-XP}787481
  • 38.229.84.*:6667 (irc) : USER TsGh{USA-XP}787481 * 0 :(null)
   

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.