Home Malware Programs Trojans PWS:Win32/Zbot.AHD

PWS:Win32/Zbot.AHD

Posted: March 5, 2013

Threat Metric

Threat Level: 9/10
Infected PCs: 80
First Seen: March 5, 2013
Last Seen: July 29, 2019
OS(es) Affected: Windows

PWS:Win32/Zbot.AHD is a Trojan that enables attackers to gain unauthorized remote access and control of an infected computer, and steals a victim's personal information, such as passwords. PWS:Win32/Zbot.AHD is generated by kits known as 'Zeus' which are bought and sold on the Internet black market. PWS:Win32/Zbot.AHD is spread and installed on the attacked PC user's computer by other malware threats, via spam email attachments or as a payload for exploit kits such as blackhole, detected as Blacole, and for exploits that include Exploit:Java/CVE-2012-0507, Exploit:Java/CVE-2012-1723, Exploit:Java/CVE-2013-0422, and Exploit:Win32/Pdfjsc. When executed, PWS:Win32/Zbot.AHD creates a modified copy of itself with a randomly-generated file name in the specific location. PWS:Win32/Zbot.AHD then makes registry modifications to assure that this copy is launched each time you start Windows.

Aliases

Trj/Genetic.gen [Panda]W32/Kryptik.FA!tr [Fortinet]UDS:DangerousObject.Multi.Generic [Kaspersky]Generic-FAJN!039295CA9617 [McAfee]

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



every.exe File name: every.exe
Size: 444.92 KB (444928 bytes)
MD5: f27ce100fce354b7a70f6dfdee68dba6
Detection count: 93
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: March 6, 2013
%APPDATA%\dlc.xmm File name: dlc.xmm
Size: 200.19 KB (200192 bytes)
MD5: 039295ca9617c9d4fe987a96aae7fee7
Detection count: 77
Mime Type: unknown/xmm
Path: %APPDATA%
Group: Malware file
Last Updated: August 30, 2013
ac78f2d563ad0ec8c3e685147eef7d49 File name: ac78f2d563ad0ec8c3e685147eef7d49
Size: 283.64 KB (283648 bytes)
MD5: ac78f2d563ad0ec8c3e685147eef7d49
Detection count: 65
Group: Malware file
Last Updated: March 6, 2013
b25f0bd5f3fb01de60fd6a64f356ac74 File name: b25f0bd5f3fb01de60fd6a64f356ac74
Size: 283.64 KB (283648 bytes)
MD5: b25f0bd5f3fb01de60fd6a64f356ac74
Detection count: 24
Group: Malware file
Last Updated: March 6, 2013
abeff613f8966b0b42a9f33bb2a9f779 File name: abeff613f8966b0b42a9f33bb2a9f779
Size: 283.64 KB (283648 bytes)
MD5: abeff613f8966b0b42a9f33bb2a9f779
Detection count: 3
Group: Malware file
Last Updated: March 6, 2013
%APPDATA%\<RANDOM LETTERS>\<RANDOM LETTERS>.exe File name: %APPDATA%\<RANDOM LETTERS>\<RANDOM LETTERS>.exe
Mime Type: unknown/exe
Group: Malware file
<DefaultUserPath>\Programs\Startup\<RANDOM LETTERS>.exe File name: <DefaultUserPath>\Programs\Startup\<RANDOM LETTERS>.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
C:\Documents and Settings\<username>\Programs\Startup\<RANDOM LETTERS>.exe File name: C:\Documents and Settings\<username>\Programs\Startup\<RANDOM LETTERS>.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
C:\Users\<username>\Programs\Startup\<RANDOM LETTERS>.exe File name: C:\Users\<username>\Programs\Startup\<RANDOM LETTERS>.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
C:\Documents and Settings\<username>\Programs\Startup\<RANDOM LETTERS>.exe File name: C:\Documents and Settings\<username>\Programs\Startup\<RANDOM LETTERS>.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
C:\Users\<username>\Programs\Startup\<RANDOM LETTERS>.exe File name: C:\Users\<username>\Programs\Startup\<RANDOM LETTERS>.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\{Value}HKEY_CURRENT_USER\Software\Microsoft\Windows\Currentversion\Run "{GUID of Windows volume}" = "%APPDATA%\\.exe"HKEY_CURRENT_USER\Software\Microsoft\Windows\Currentversion\Run {F38B3E05-4020-AD7D-5A64-4EC179C86DD3}" "= "c:\documents and settings\administrator\application data\eqepys\ruynn.exe"
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