TROJ_UPATRE.SJR
Troj/Upatre-LD (Sophos); TrojanDownloader:Win32/Upatre (Microsoft); Downloader.Upatre (Symantec)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
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 executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system. As of this writing, the said sites are inaccessible.
It gathers information and reports it to its servers.
TECHNICAL DETAILS
51,712 bytes
EXE
No
10 Nov 2015
Downloads files, Steals information, Connects to URLs/IPs
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 adds the following processes:
- svchost.exe
It executes then deletes itself afterward.
It injects codes into the following process(es):
- created svchost.exe
Propagation
This Trojan does not have any propagation routine.
Backdoor Routine
This Trojan does not have any backdoor routine.
Download Routine
This Trojan connects to the following website(s) to download and execute a malicious file:
- https://{BLOCKED}.{BLOCKED}.52.89/broli1.rar
- https://{BLOCKED}.{BLOCKED}.11.51/broli1.rar
- https://{BLOCKED}.{BLOCKED}.129.116/broli1.rar
- https://{BLOCKED}.{BLOCKED}.203.43/broli1.rar
- https://{BLOCKED}.{BLOCKED}.247.74/broli1.rar
- https://{BLOCKED}.{BLOCKED}.31.6/broli1.rar
- https://{BLOCKED}.{BLOCKED}.223.45/broli1.rar
- https://{BLOCKED}.{BLOCKED}.117.66/broli1.rar
- https://{BLOCKED}.{BLOCKED}.64.160/broli1.rar
- https://{BLOCKED}.{BLOCKED}.93.231/broli1.rar
- https://{BLOCKED}.{BLOCKED}.164.10/broli1.rar
- https://{BLOCKED}.{BLOCKED}.38.182/broli1.rar
- https://{BLOCKED}.{BLOCKED}.199.21/broli1.rar
- https://{BLOCKED}.{BLOCKED}.116.190/broli1.rar
- https://{BLOCKED}.{BLOCKED}.56.126/broli1.rar
- https://{BLOCKED}.{BLOCKED}.89.57/broli1.rar
- https://{BLOCKED}.{BLOCKED}.57.155/broli1.rar
- https://{BLOCKED}.{BLOCKED}.197.50/broli1.rar
- https://{BLOCKED}.{BLOCKED}.68.78/broli1.rar
- https://{BLOCKED}.{BLOCKED}.138.154/broli1.rar
- https://{BLOCKED}.{BLOCKED}.217.188/broli1.rar
- https://{BLOCKED}.{BLOCKED}.131.116/broli1.rar
- https://{BLOCKED}.{BLOCKED}.20.53/broli1.rar
- https://{BLOCKED}.{BLOCKED}.144.177/broli1.rar
- https://{BLOCKED}.{BLOCKED}.114.26/broli1.rar
- https://{BLOCKED}.{BLOCKED}.16.162/broli1.rar
- https://{BLOCKED}.{BLOCKED}.14.163/broli1.rar
- https://{BLOCKED}.{BLOCKED}.99.121/broli1.rar
- https://{BLOCKED}.{BLOCKED}.24.50/broli1.rar
- https://{BLOCKED}.{BLOCKED}.13.21/broli1.rar
- https://{BLOCKED}.{BLOCKED}.135.178/broli1.rar
- https://{BLOCKED}.{BLOCKED}.201.105/broli1.rar
- https://{BLOCKED}.{BLOCKED}.201.61/broli1.rar
- https://{BLOCKED}.{BLOCKED}.242.203/broli1.rar
- https://{BLOCKED}.{BLOCKED}.171.44/broli1.rar
- https://{BLOCKED}.{BLOCKED}.204.114/broli1.rar
- https://{BLOCKED}.{BLOCKED}.82.80/broli1.rar
- https://{BLOCKED}.{BLOCKED}.101.67/broli1.rar
- https://{BLOCKED}.{BLOCKED}.233.105/broli1.rar
- https://{BLOCKED}.{BLOCKED}.76.211/broli1.rar
- https://{BLOCKED}.{BLOCKED}.64.45/broli1.rar
- https://{BLOCKED}.{BLOCKED}.65.67/broli1.rar
- https://{BLOCKED}.{BLOCKED}.168.205/broli1.rar
- https://{BLOCKED}.{BLOCKED}.236.122/broli1.rar
- https://{BLOCKED}.{BLOCKED}.236.148/broli1.rar
- https://{BLOCKED}.{BLOCKED}.172.232/broli1.rar
- https://{BLOCKED}.{BLOCKED}.155.22/broli1.rar
- https://{BLOCKED}.{BLOCKED}.82.239/broli1.rar
- https://{BLOCKED}.{BLOCKED}.82.66/broli1.rar
It saves the files it downloads using the following names:
- %User Temp%\{random}.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 then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
As of this writing, the said sites are inaccessible.
Other Details
This Trojan connects to the following URL(s) to get the affected system's IP address:
- http://icanhazip.com/
It gathers the following information and reports it to its servers:
- Computer Name
- OS version
- Service Pack
- IP Address
NOTES:
This Trojan connects to the URL http://{BLOCKED}.{BLOCKED}.90.166:{random port}/14BR11/{machine name}/{data} to report infection of the affected system. The variable {random port} is 12212,12213,12214 or 12215.
SOLUTION
9.8
12.142.01
10 Nov 2015
12.143.00
11 Nov 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 files
- %User Temp%\{random}.exe
Step 4
Scan your computer with your Trend Micro product to delete files detected as TROJ_UPATRE.SJR. 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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