TSPY_SKRINCAP.C
Infostealer.Limitail (Norton); Trojan horse MSIL8.AJKL (AVG); Gen:Heur.MSIL.Androm.10 (BitDefender); MSIL/KJB!tr (Fortinet); Trojan.MSIL.Injector (Ikarus); a variant of MSIL/Injector.KKM trojan (ESET-NOD32);
Windows
Threat Type: Spyware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet
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.
TECHNICAL DETAILS
556,544 bytes
EXE
Yes
29 Jun 2015
Connects to URLs/IPs
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 and executes them:
- %User Profile%\Templates\takshost.exe
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
It drops and executes the following files:
- %Application Data%\Microsoft\Windows\AdobeARMservice.exe - executes the dropped copy, detected as TROJ_SKRINCAP.C
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming 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 copies of itself into the affected system:
- %Application Data%\Microsoft\Windows\bthserv.exe
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming 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.)
Dropping Routine
This spyware drops the following files:
- %Application Data%\{HostName}_{Date & Time}.jpg - Snapshot of the Desktop, deleted afterwards
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming 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.)
Information Theft
This spyware gathers the following data:
- Computer Name
- Open applications
- Keystrokes
- Machine time
- Snapshot of desktop
Stolen Information
This spyware sends the gathered information via HTTP POST to the following URL:
- http://nelsonpanel.{BLOCKED}6.lt/webpanel/webpanel/image/upload.php
- http://nelsonpanel.{BLOCKED}6.lt/webpanel/webpanel/post.php
SOLUTION
9.750
11.760.03
26 Jun 2015
11.761.00
27 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
Remove malware/grayware files dropped/downloaded by TSPY_SKRINCAP.C. (Note: Please skip this step if the threats listed below have already been removed.)
- TROJ_SKRINCAP.C
Step 4
Restart in Safe Mode
Step 5
Search and delete this file
- ¿plication DataϿicrosoft\Windows\AdobeARMservice.exe
- ¿plication DataϿHostName}_{Date & Time}.jpg
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_SKRINCAP.C. 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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