BKDR_SHOTODOR.RRCC
TrojanSpy:MSIL/Golroted.B (Microsoft)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This backdoor 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
2,040,320 bytes
EXE
Yes
20 Jan 2017
Arrival Details
This backdoor 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 backdoor drops the following files:
- %User Profile%\agooIXzT8w3faijx\QZXbQ
- %User Profile%\agooIXzT8w3faijx\WLGU.exe
- %User Profile%\WLGU1
(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:
- %User Profile%\WLGU.exe
- %User Profile%\QZXbQ
(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.)
Autostart Technique
This backdoor drops the following file(s) in the Windows User Startup folder to enable its automatic execution at every system startup:
- %User Startup%\GEBWfaWJBNeT.lnk
(Note: %User Startup% is the current user's Startup folder, which is usually C:\Documents and Settings\{user}\Start Menu\Programs\Startup on Windows 2000 and XP, and C:\Documents and Settings\{User name}\Start Menu\Programs\Startup on Windows Vista, 7, and 8.)
Other Details
This backdoor connects to the following URL(s) to get the affected system's IP address:
- http://whatismyipaddress.com/
It connects to the following possibly malicious URL:
- http://{BLOCKED}tory.certum.pl/ctnca.cer
- {BLOCKED}p.{BLOCKED}x.com
- {BLOCKED}p.{BLOCKED}x.com
SOLUTION
9.800
13.168.02
20 Jan 2017
13.169.00
21 Jan 2017
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
Search and delete this file
- %User Profile%\agooIXzT8w3faijx\QZXbQ
- %User Profile%\agooIXzT8w3faijx\WLGU.exe
- %User Profile%\WLGU1
- %User Profile%\WLGU.exe
- %User Profile%\QZXbQ
- %User Startup%\GEBWfaWJBNeT.lnk
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as BKDR_SHOTODOR.RRCC. 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.
Did this description help? Tell us how we did.