TSPY_EMOTET.SJ
VirTool:Win32/CeeInject!KY (Microsoft); Trojan.Win32.Emotet (Ikarus); Win32/Emotet.AD (ESET-NOD32); W32/EMOTET.XXQD!tr (Fortinet)
Windows
Threat Type: Spyware
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
However, as of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
243,427 bytes
EXE
Yes
09 Jun 2015
Arrival Details
This spyware 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 spyware drops the following copies of itself into the affected system:
- %AppDataLocal%\{random}.exe
(Note: %AppDataLocal% is the Application Data folder found in Local Settings, where it is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local 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.)
Autostart Technique
This spyware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random} = = "%AppDataLocal%\{random}.exe"
Other System Modifications
This spyware adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
GlobalUserOffline = "0"
Other Details
This spyware connects to the following possibly malicious URL:
- {BLOCKED}.{BLOCKED}.244.54:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.148.216:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.115.183:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.94.120:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.211.140:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.112.142:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.14.31:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.144.59:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.14.15:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.209.150:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.183.245:8080/{random 1}/{random 2}.php
- {BLOCKED}.{BLOCKED}.17.211:8080/{random 1}/{random 2}.php
However, as of this writing, the said sites are inaccessible.
SOLUTION
9.750
11.720.05
09 Jun 2015
11.721.00
09 Jun 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
Restart in Safe Mode
Step 4
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- {random} = "%AppDataLocal%\{random}.exe"
- {random} = "%AppDataLocal%\{random}.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
- GlobalUserOffline = "0"
- GlobalUserOffline = "0"
Step 5
Search and delete these files
- %AppDataLocal%\{random}.exe
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_EMOTET.SJ. 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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