For Consumer

Virus Profile: PWS-Zbot.gen.asp!50C59CED1262

Threat Search
Print
   
Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 12/29/2012
Date Added: 12/29/2012
Origin: Unknown
Length: 202944
Type: Trojan
Subtype: Password Stealer
DAT Required: 6939
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 DetectionPWS-Zbot.gen.asp
Length202944 bytes
MD550c59ced1262f6d995d30355ac41f519
SHA1f9db9ff3b81b20a9ab884a0aeb670285e468c498


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Kryptik-KYA [Trj]
AVG (GriSoft)Generic30.BSTV (Trojan horse)
aviraTR/Crypt.XPACK.Gen3
BitDefenderGen:Variant.Kazy.130455
FortiNetW32/FakeAV.PBZG!tr
Microsoftrogue:win32/fakerean
SymantecTrojan.Gen
EsetWin32/Kryptik.AREQ trojan (variant)
normanW32/FakeAlert.CZXL (trojan)
pandaSuspicious
SophosTroj/Zbot-DJX
Trend MicroTROJ_KREPTK.SM02
V-BusterTrojan.Kryptik!1UUkAWhcgro (trojan)

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


ActivitiesRisk Levels
Modifies Windows security center settings.High
Attempts to download an executable file from the web.Medium
Attempts to connect to a medium risk domain that may pose a minor security risk.Medium
Modifies Windows firewall settings.Medium
Adds or modifies Shell Open registry value. Could be used to launch a program on startup.Medium
Enumerates many system files and directories.Low
Enumerates process listLow
Displays systray popups that warn of malware related activitiesLow
Process attempts to call itself recursivelyLow
Adds or modifies Internet Explorer cookiesLow
Adds or modifies Shell Run registry value. Could be used to launch a program on startup.Low
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaPWS-Zbot.gen.asp
McAfee SupportedPWS-Zbot.gen.asp



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:

ilo.exe

The following files have been added to the system:

  • %USERPROFILE%\Local Settings\Application Data\GDIPFONTCACHEV1.DAT
  • %USERPROFILE%\Templates\1pb78m8n6he1l1565b3k36w7o7of8ksb88y53s63tpqg0vl
  • %TEMP%\1pb78m8n6he1l1565b3k36w7o7of8ksb88y53s63tpqg0vl
  • %ALLUSERSPROFILE%\Application Data\1pb78m8n6he1l1565b3k36w7o7of8ksb88y53s63tpqg0vl
  • %USERPROFILE%\Local Settings\Application Data\1pb78m8n6he1l1565b3k36w7o7of8ksb88y53s63tpqg0vl

The following files were temporarily written to disk then later removed:

  • %TEMP%\F9DB9FF3B81B20A9AB884A0AEB670285E468C498

The following registry elements have been created:

  • HKEY_CURRENT_USER\.EXE\
  • HKEY_CURRENT_USER\.EXE\DEFAULTICON\
  • HKEY_CURRENT_USER\.EXE\SHELL\
  • HKEY_CURRENT_USER\.EXE\SHELL\OPEN\
  • HKEY_CURRENT_USER\.EXE\SHELL\OPEN\COMMAND\
  • HKEY_CURRENT_USER\.EXE\SHELL\RUNAS\
  • HKEY_CURRENT_USER\.EXE\SHELL\RUNAS\COMMAND\
  • HKEY_CURRENT_USER\EXEFILE\
  • HKEY_CURRENT_USER\EXEFILE\DEFAULTICON\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\OPEN\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\OPEN\COMMAND\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\RUNAS\
  • HKEY_CURRENT_USER\EXEFILE\SHELL\RUNAS\COMMAND\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\.EXE\CONTENT TYPE = application/x-msdownload
  • HKEY_CURRENT_USER\.EXE\SHELL\OPEN\COMMAND\ISOLATEDCOMMAND = "%1" %*
  • HKEY_CURRENT_USER\.EXE\SHELL\RUNAS\COMMAND\ISOLATEDCOMMAND = "%1" %*
  • HKEY_CURRENT_USER\EXEFILE\CONTENT TYPE = application/x-msdownload
  • HKEY_CURRENT_USER\EXEFILE\SHELL\OPEN\COMMAND\ISOLATEDCOMMAND = "%1" %*
  • HKEY_CURRENT_USER\EXEFILE\SHELL\RUNAS\COMMAND\ISOLATEDCOMMAND = "%1" %*
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\IDENTITY = 3044072876
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\CTFMON.EXE = %WINDIR%\SYSTEM32\ctfmon.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\ANTIVIRUSDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\ANTIVIRUSOVERRIDE = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\FIREWALLDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\FIREWALLOVERRIDE = 1
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\SECURITY CENTER\UPDATESDISABLENOTIFY = 1
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\START = 4
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\DOMAINPROFILE\DISABLENOTIFICATIONS = 1
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\DOMAINPROFILE\DONOTALLOWEXCEPTIONS = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\DOMAINPROFILE\ENABLEFIREWALL = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\DISABLENOTIFICATIONS = 1
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\DONOTALLOWEXCEPTIONS = 0
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet\SERVICES\SHAREDACCESS\PARAMETERS\FIREWALLPOLICY\STANDARDPROFILE\ENABLEFIREWALL = 0

The applications attempted the following network connection(s):

  • 78.140.149.**:80
  • 46.249.42.***:80
  • hxxp://olivedercheboss.name/*****
  • hxxp://78.140.149.84/*****

   

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.