TROJ_UPATRE.KA
TrojanDownloader:Win32/Upatre.AI (Microsoft); Generic Downloader.z (McAfee); Downloader.Upatre (Symantec); Trojan-Downloader.Win32.Upatre.cvr (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan-Downloader:W32/Upatre.E (FSecure); Trojan horse Downloader.Generic14.DQZ (AVG)
Windows
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
20,992 bytes
EXE
No
06 Nov 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.
Dropping Routine
This Trojan drops the following files:
- %User Temp%\ckovo.exe
- kbwrc.exe
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}5.214.6/2410uk2/CWS03_08/0/51-SP2/0
- http://{BLOCKED}5.214.6/2410uk2/CWS03_08/1/0/0
- http://{BLOCKED}ood.com/images/2410uk2.oss
- http://{BLOCKED}5.214.6/2410uk2/CWS03_08/41/4/0
- http://{BLOCKED}ood.com/uploads/about/2410uk2.oss
- http://{BLOCKED}5.214.6/2410uk2/CWS03_08/41/5/0
- {BLOCKED}.107.131
- {BLOCKED}164.13
It deletes itself after execution.
This report is generated via an automated analysis system.
SOLUTION
9.700
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 2
Search and delete these components
- %User Temp%\ckovo.exe
- kbwrc.exe
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_UPATRE.KA. 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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