TSPY_ZBOT.IMZ
PWS:Win32/Zbot.gen!Y(Microsoft), PWS-Zbot.gen.ds (Mcafee), Trojan-Spy.Win32.Zbot.bopd (Kaspersky)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
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
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:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)
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:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)
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 keys:
HKEY_CURRENT_USER\Software\Microsoft\
{random letters}
Information Theft
This spyware accesses the following site to download its configuration file:
- http://{BLOCKED}.{BLOCKED}9.232.7/memor/conf.bin
Other Details
However, as of this writing, the said sites are inaccessible.