TROJ_KULUOZ.WSBF
Trojan horse Downloader.Generic13.CFSM (AVG), Trojan.Win32.Yakes.fctd (Kaspersky), TrojanDownloader:Win32/Kuluoz.D (Microsoft), Win32/TrojanDownloader.Zortob.F trojan (Nod32), Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows XP, Windows Server 2003
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.
It deletes itself after execution.
TECHNICAL DETAILS
180,224 bytes
EXE
Yes
19 Jun 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 a copy of itself in the following folders using different file names:
- %Application Data%\{random file name}.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.)
It leaves the following text files:
- {Malware Path and Filename}.txt
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random} = "%Application Data%\{random file name}.exe"
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{random generated IP addresses}:8080
It deletes itself after execution.