TROJ_KARAGANY.BF
TrojanDownloader:Win32/Karagany.I (Microsoft), PWS-Zbot-FAQD!63B2115284DF (McAfee), Trojan.Win32.Tepfer.aa (v) (Sunbelt), TR/Dldr.Karagany.I.33 (Antivir), Trojan.Win32.Nedsym (Ikarus)
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: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet
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 executes then deletes itself afterward.
It does not have any propagation routine.
It does not have any backdoor routine.
It does not drop any other file.
It does not have any information-stealing capability.
TECHNICAL DETAILS
44,160 bytes
EXE
No
06 May 2013
Downloads files
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 executes then deletes itself afterward.
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- Xi3FVneIx
Propagation
This Trojan does not have any propagation routine.
Backdoor Routine
This Trojan does not have any backdoor routine.
Dropping Routine
This Trojan does not drop any other file.
Download Routine
This Trojan connects to the following website(s) to download and execute a malicious file:
- http://{BLOCKED}inobonus.co.uk/w.htm?AvKX65ZZw8GQgL3fWsxdT7ocqgbEey
- http://{BLOCKED}asinoonline.com/u.htm?bNTyWtaIQC3kt1IPLWJLON69qBKfi
- http://{BLOCKED}ternetcasino.info/x.htm?xOet4ByizlNjDm9WWepPmrxTxC4
- http://{BLOCKED}sinogame.co.uk/u.htm?gQrQyhWUBXkLb59t1GGFrC7MIyL5tA
- http://{BLOCKED}oulette.co.uk/y.htm?aikZsipIewviiMgwCfYtX5AHUMVRPt3
It saves the files it downloads using the following names:
- %User Temp%\~!#{random}.tmp - detected as TSPY_FAREIT.BFO
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
Information Theft
This Trojan does not have any information-stealing capability.
NOTES:
It pings the following IP to check for an Internet connection.
- 192.168.123.254
It creates a process with the same name as itself, then injects itself to that process.
However, it still terminates after performing its intended routine.
It does not have rootkit capabilities.
It does not exploit any vulnerability.
SOLUTION
9.300
9.920.04
15 May 2013
9.921.00
15 May 2013
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_KARAGANY.BF. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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