TROJ_UPATRE.MVS
TrojanDownloader:Win32/Upatre (Microsoft); RDN/Generic Trojan.j (McAfee); Downloader.Upatre (Symantec); Trojan.Win32.Inject.vevw (Kaspersky); Troj/DwnLdr-MSR (Sophos); Win32.Malware!Drop (Sunbelt); Trojan horse Inject3.ASY (AVG)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives as attachment to mass-mailed email messages.
It deletes itself after execution.
TECHNICAL DETAILS
57,344 bytes
EXE
Yes
13 Aug 2015
Arrival Details
This Trojan arrives as attachment to mass-mailed email messages.
Dropping Routine
This Trojan drops the following files:
- %User Temp%\tjyZJg2.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}.{BLOCKED}.241.208:13537/1208us77/{Host Name}/{value}
- https://{BLOCKED}.{BLOCKED}.123.66/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.121.91/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.189.143/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.247.74/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.31.6/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.251.208/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.250.35/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.236.184/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.239.34/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.243.105/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.166.22/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.197.50/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.68.78/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.49.117/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.238.170/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.231.11/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.210.122/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.217.188/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.92.193/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.131.116/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.144.177/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.156.246/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.36.52/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.42.64/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.236.173/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.96.68/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.229.215/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.167.163/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.195.6/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.197.54/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.201.222/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.201.61/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.242.203/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.171.44/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.81.211/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.204.114/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.9.146/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.240.148/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.10.116/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.82.80/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.81.120/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.30.156/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.161.47/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.104.170/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.142.189/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.107.172/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.141.50/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.17.39/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.11.253/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.121.91/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.251.208/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.167.163/USAreport20150812_7.pdf
- https://{BLOCKED}.{BLOCKED}.30.156/USAreport20150812_7.pdf
It deletes itself after execution.
SOLUTION
9.750
11.850.07
13 Aug 2015
11.851.00
13 Aug 2015
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Search and delete these components
- %User Temp%\tjyZJg2.exe
Step 4
Scan your computer with your Trend Micro product to delete files detected as TROJ_UPATRE.MVS. 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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