TROJ_AGENTT.RB
Win32/Injector.BBCT trojan (ESET), Downloader-FYH!D6411771559B (Mcafee)
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: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan 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
106,344 bytes
EXE
04 Apr 2014
Arrival Details
This Trojan 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 Trojan drops the following component file(s):
- %AppDataLocal%\boutram.dll
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local on Windows Vista and 7.)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
CurrentVersion\Run
boutram = "rundll32.exe "%AppDataLocal%\boutram.dll",boutram"
It creates the following registry entries to enable automatic execution of dropped component at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrenVersion\Winlogon\
Notify\boutram
Impersonate = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrenVersion\Winlogon\
Notify\boutram
Asynchronous = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrenVersion\Winlogon\
Notify\boutram
MaxWait = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrenVersion\Winlogon\
Notify\boutram
voajfkwo = "{values}"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrenVersion\Winlogon\
Notify\boutram
DllName = "%AppDataLocal%\boutram.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrenVersion\Winlogon\
Notify\boutram
Startup = boutram
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}a.{BLOCKED}pgrow.co.uk/
- http://{BLOCKED}1.{BLOCKED}pgrow.co.uk/