TROJ_UPATRE.YYSJL
Trojan-Downloader.Win32.Upatre.geu (Kaspersky); TrojanDownloader:Win32/Upatre.BC (Microsoft); Upatre-FASN!06F2EF4A436B (McAfee)
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
44,032 bytes
EXE
No
28 Apr 2015
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 copies of itself into the affected system and executes them:
- %User Temp%\zovergote.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.)
It drops the following files:
- %User Temp%\zover_C2AC.txt
(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.)
Download Routine
This Trojan accesses the following websites to download files:
- {BLOCKED}.{BLOCKED}.85.11
- {BLOCKED}.{BLOCKED}.121.140
- {BLOCKED}.{BLOCKED}.122.31
- {BLOCKED}.{BLOCKED}.54.111
- {BLOCKED}.{BLOCKED}.112.213
- {BLOCKED}.{BLOCKED}.59.234
- {BLOCKED}.{BLOCKED}.138.75
- {BLOCKED}.{BLOCKED}.15.70
- {BLOCKED}.{BLOCKED}.220.102
- {BLOCKED}.{BLOCKED}.87.7
- {BLOCKED}.{BLOCKED}.109.65
- {BLOCKED}.{BLOCKED}.2.228
- {BLOCKED}.{BLOCKED}.97.45
- {BLOCKED}.{BLOCKED}.97.54
- {BLOCKED}.{BLOCKED}.97.64
- {BLOCKED}.{BLOCKED}.97.66
- {BLOCKED}.{BLOCKED}.97.71
Other Details
This Trojan connects to the following URL(s) to get the affected system's IP address:
- icanhazip.com
It deletes itself after execution.
SOLUTION
9.750
11.638.03
29 Apr 2015
11.639.00
30 Apr 2015
Scan your computer with your Trend Micro product to delete files detected as TROJ_UPATRE.YYSJL. 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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