BKDR_DUSVEXT.A
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This backdoor 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
152,576 bytes
EXE
28 Jun 2012
Arrival Details
This backdoor 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 backdoor drops the following copies of itself into the affected system:
- %User Profile%\Application Data\{random file name}.exe
(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 backdoor adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random file name} = "%User Profile%\Application Data\{random file name}.exe"
Other Details
This backdoor connects to the following possibly malicious URL:
- http://{BLOCKED}e.pl/forums/tasks.php?uid={305e9840-80e7-11de-9e91-806d6172696f-1131521333}
- http://{BLOCKED}e.pl/forums/adduser.php?uid={305e9840-80e7-11de-9e91-806d6172696f-1131521333}&lan={IP address}&cmpname={Computer Name} [{User Name}]&country={Language} +1&cc=US&idle=2&ver=v1.2