TSPY_ZBOT.AWM
PWS:Win32/Zbot.gen!Y (Microsoft), PWS-Zbot.gen.hb (Mcafee), Trojan-Spy.Win32.Zbot.cdej (Kaspersky)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
However, as of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
Varies
EXE
Yes
01 Mar 2012
Downloads files
Arrival Details
This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This spyware drops the following files:
- %User Profile%\Application Data\{random letters 1}\{random letters}.exe - copy of itself
- %User Profile%\Application Data\{random letters 2}\{random letters}.{random letters} - encrypted file
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
It creates the following folders:
- %User Profile%\Application Data\{random letters 1}
- %User Profile%\Application Data\{random letters 2}
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
Autostart Technique
This spyware creates the following registry entries to enable automatic execution of dropped component at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{GUID} = %User Profile%\Application Data\{random letters 1}\{random letters}.exe"
Other System Modifications
This spyware adds the following registry entries as part of its installation routine:
HKEY_CURRENT_USER\Software\Microsoft\
{random letters}
Information Theft
This spyware accesses the following site to download its configuration file:
- http://{BLOCKED}jazz.ru/search/new81me.bin
- http://{BLOCKED}oys.ru/frendshipjp.bin
Other Details
However, as of this writing, the said sites are inaccessible.