ADW_SURFACC
Adware:Win32/SurfAccuracy (Microsoft), SecurityRisk.Downldr (Symantec)
Windows 2000, Windows XP, Windows Server 2003

Threat Type: Adware
Destructiveness: No
Encrypted: No
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
204,208 bytes
EXE
Yes
10 Aug 2011
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 file(s)/component(s):
- %Program Files%\Mozilla Firefox\.autoreg
- %Program Files%\Mozilla Firefox\components\AdVComponent.dll
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files.)
Autostart Technique
This adware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
AdVantage = "{malware path and file name}"
Other System Modifications
This adware adds the following registry keys:
HKEY_CURRENT_USER\Software\AdVantage
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Explorer Bars\{D367A4AF-8202-4173-A115-9831108F1E0A}
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
AdVantage
Download Routine
This adware connects to the following URL(s) to download its component file(s):
- http://{BLOCKED}ig.poweredbyadvantage.com/advantage/data/co nfigs/PH/advantage.cfg
- http://{BLOCKED}ps.{BLOCKED}dbyadvantage.com/scripts/download.ph p
- http://{BLOCKED}ps.{BLOCKED}dbyadvantage.com/scripts/feedback.php
- http://{BLOCKED}fig.{BLOCKED}dbyadvantage.com/advantage/advantage.cfg.php
It saves the files it downloads using the following names:
- %Current Folder%\advantage.cfg
- %Current Folder%\advantage.mht
SOLUTION
8.900
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Identify and terminate files detected as ADW_SURFACC
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 3
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
- AdVantage
- AdVantage
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Explorer Bars
- {D367A4AF-8202-4173-A115-9831108F1E0A}
- {D367A4AF-8202-4173-A115-9831108F1E0A}
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall
- AdVantage
- AdVantage
Step 4
Delete this registry value
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
- AdVantage = "{malware path and file name}"
- AdVantage = "{malware path and file name}"
Step 5
Search and delete this file
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files and folders in the search result.
- %Program Files%\Mozilla Firefox\.autoreg
- %Program Files%\Mozilla Firefox\components\AdVComponent.dll
- %Current Folder%\advantage.cfg
- %Current Folder%\advantage.mht
Step 6
Scan your computer with your Trend Micro product to delete files detected as ADW_SURFACC. 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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