ADW_ChinAd
Windows
Threat Type: Adware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This adware 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
261,320 bytes
EXE
No
07 Jan 2016
Arrival Details
This adware 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 adware drops the following copies of itself into the affected system:
- %Program Files%\SFK\SSFK.exe
(Note: %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.)
It creates the following folders:
- %Program Files%\SFK
(Note: %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.)
Other System Modifications
This adware deletes the following files:
- %System Root%\Z
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Dropping Routine
This adware drops the following files:
- %Program Files%\SFK\GIRF
- %Program Files%\SFK\1UP
(Note: %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.)
Other Details
This adware connects to the following possibly malicious URL:
- http://www.{BLOCKED}ch123.com/logic/z.php
- http://xa.{BLOCKED}oud.com/{random path}?{random characters}
- http://www.{BLOCKED}3.com/inf/eve/SSFK?ver=2.0.6.60
- http://up.{BLOCKED}5.com/everything/up?{random characters}
- http://xa.{BLOCKED}oud.com/{random path}?action=visit.SSFK.heartbeat
- {BLOCKED}0.1
- {BLOCKED}3.140.169
- {BLOCKED}.35.143
- {BLOCKED}.35.150
- {BLOCKED}.221.169
- {BLOCKED}.247.67
This report is generated via an automated analysis system.
SOLUTION
9.8
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
Search and delete these components
- %Program Files%\SFK\GIRF
- %Program Files%\SFK\1UP
Step 3
Search and delete this folder
- %Program Files%\SFK
Step 4
Scan your computer with your Trend Micro product to delete files detected as ADW_ChinAd. 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.
Step 5
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %System Root%\Z
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