ADW_STARTPAGE
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
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
1,307,880 bytes
EXE
No
19 Oct 2013
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 creates the following folders:
- %User Temp%\is-OLST8.tmp
- %User Temp%\is-76291.tmp
- %User Temp%\is-76291.tmp\_isetup
- %User Temp%\Adobe
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
Other System Modifications
This adware adds the following registry keys:
HKEY_CURRENT_USER\Software\Adobe\
Adobe Acrobat\10.0
HKEY_CURRENT_USER\Software\Adobe\
Adobe Synchronizer\10.0
HKEY_LOCAL_MACHINE\System\Acrobatbrokerserverdispatchercpp789
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Installer\
Migrated
Dropping Routine
This adware drops the following files:
- %User Temp%\is-olst8.tmp\{malware file name}.tmp
- %User Temp%\is-76291.tmp\_isetup\_RegDLL.tmp
- %User Temp%\is-76291.tmp\_isetup\_shfoldr.dll
- %User Temp%\is-76291.tmp\install.exe
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
This report is generated via an automated analysis system.
SOLUTION
9.300
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
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\Adobe\Adobe Acrobat
- 10.0
- In HKEY_CURRENT_USER\Software\Adobe\Adobe Synchronizer
- 10.0
- In HKEY_LOCAL_MACHINE\System
- Acrobatbrokerserverdispatchercpp789
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Installer
- Migrated
Step 3
Search and delete these components
- %User Temp%\is-olst8.tmp\{malware file name}.tmp
- %User Temp%\is-76291.tmp\_isetup\_RegDLL.tmp
- %User Temp%\is-76291.tmp\_isetup\_shfoldr.dll
- %User Temp%\is-76291.tmp\install.exe
Step 4
Search and delete these folders
- %User Temp%\is-OLST8.tmp
- %User Temp%\is-76291.tmp
- %User Temp%\is-76291.tmp\_isetup
- %User Temp%\Adobe
Step 5
Scan your computer with your Trend Micro product to delete files detected as ADW_STARTPAGE. 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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