WORM_PALEVO.APM
VirTool:Win32/VBInject.LX (Microsoft), Trojan.Usuge!gen3 (Symantec), Mal/VBCheMan-C (Sophos), W32/VB.BPN!worm (Fortinet), P2P-Worm.Win32.Palevo (Ikarus), Win32/Bflient.K worm (ESET)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
Arrival Details
This worm 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 worm drops the following copies of itself into the affected system and executes them:
- %Application Data%\iukdqw.exe
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)
Autostart Technique
This worm adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon - for Windows OS other than Vista and 7
Taskman = "%Application Data%\iukdqw.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon - for Windows Vista and 7
Shell = "explorer.exe,%Application Data%\iukdqw.exe"
Other Details
This worm connects to the following possibly malicious URL:
- http://{BLOCKED}ate.com
- http://{BLOCKED}m.{BLOCKED}ate.com
- http://{BLOCKED}atz.com
- http://{BLOCKED}z.com
- http://{BLOCKED}.{BLOCKED}z.com
- https://{BLOCKED}s.{BLOCKED}z.com