ADW_AIRADINSTALLER
AirInstaller (fs) (Sunbelt), Adware/AirAdInstaller (Fortinet), AdWare.Win32 (Ikarus), AdWare.Win32.AirAdInstaller.aldw (Kaspersky), a variant of Win32/AirAdInstaller.A application (NOD32)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
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
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:
- %User Temp%\setup.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.)
It creates the following folders:
- %User Temp%\{random folder name}
- %User Temp%\{random folder name}\theme
- %User Temp%\{random folder name}\theme\config
- %User Temp%\{random folder name}\theme\css
- %User Temp%\{random folder name}\theme\html
- %User Temp%\{random folder name}\theme\images
- %User Temp%\{random folder name}\theme\js
- %User Temp%\{random folder name}\theme\software
- %User Temp%\airinstaller
(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.)
Dropping Routine
This adware drops the following files:
- %User Temp%\{random folder name}\cancel_page.html
- %User Temp%\{random folder name}\download_page.html
- %User Temp%\{random folder name}\installer.html
- %User Temp%\{random folder name}\installer_temp.html
- %User Temp%\{random folder name}\intro_page.html
- %User Temp%\{random folder name}\language.map
- %User Temp%\{random folder name}\session.xml
- %User Temp%\{random folder name}\summary_page.html
- %User Temp%\{random folder name}\theme\config\settings.xml
- %User Temp%\{random folder name}\theme\css\modal-overlay.css
- %User Temp%\{random folder name}\theme\css\style.css
- %User Temp%\{random folder name}\theme\de.lang
- %User Temp%\{random folder name}\theme\es.lang
- %User Temp%\{random folder name}\theme\html\cancelfooter.html
- %User Temp%\{random folder name}\theme\html\cancelheader.html
- %User Temp%\{random folder name}\theme\html\downloadpage.html
- %User Temp%\{random folder name}\theme\html\footer.html
- %User Temp%\{random folder name}\theme\html\header.html
- %User Temp%\{random folder name}\theme\html\header_.html
- %User Temp%\{random folder name}\theme\html\installoptionspage.html
- %User Temp%\{random folder name}\theme\html\intropage.html
- %User Temp%\{random folder name}\theme\html\offerfooter.html
- %User Temp%\{random folder name}\theme\html\offerheader.html
- %User Temp%\{random folder name}\theme\html\summarypage.html
- %User Temp%\{random folder name}\theme\html\uninstaller.html
- %User Temp%\{random folder name}\theme\images\100free.png
- %User Temp%\{random folder name}\theme\images\bg.png
- %User Temp%\{random folder name}\theme\images\bg_full.png
- %User Temp%\{random folder name}\theme\images\bg_old.png
- %User Temp%\{random folder name}\theme\images\btn_accept.png
- %User Temp%\{random folder name}\theme\images\btn_decline.png
- %User Temp%\{random folder name}\theme\images\btn_next.png
- %User Temp%\{random folder name}\theme\images\btn_next_disabled.png
- %User Temp%\{random folder name}\theme\images\btn_skip_all.png
- %User Temp%\{random folder name}\theme\images\cancel.png 3KB
- %User Temp%\{random folder name}\theme\images\complete.png
- %User Temp%\{random folder name}\theme\images\done.png
- %User Temp%\{random folder name}\theme\images\girl.png
- %User Temp%\{random folder name}\theme\images\green_shield.png
- %User Temp%\{random folder name}\theme\images\modal-overlay.png
- %User Temp%\{random folder name}\theme\images\sprite-top.png
- %User Temp%\{random folder name}\theme\images\sprite.png
- %User Temp%\{random folder name}\theme\images\thumb.png
- %User Temp%\{random folder name}\theme\images\thumb_lock.png
- %User Temp%\{random folder name}\theme\images\top-sprite.png
- %User Temp%\{random folder name}\theme\images\topbar.png
- %User Temp%\{random folder name}\theme\images\yontoo-layers.png
- %User Temp%\{random folder name}\theme\images\yontoo.png
- %User Temp%\{random folder name}\theme\js\modal-overlay.js
- %User Temp%\{random folder name}\theme\software\compat-1.png
- %User Temp%\{random folder name}\theme\software\de.lang
- %User Temp%\{random folder name}\theme\software\es.lang
- %User Temp%\{random folder name}\theme\software\logo.png
- %User Temp%\{random folder name}\theme\software\software-girl.png
- %User Temp%\{random folder name}\theme\software\software.html
- %User Temp%\{random folder name}\theme\software\title.png
- %User Temp%\{random folder name}\uninstaller.html
(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 Details
This adware connects to the following possibly malicious URL:
- http://{BLOCKED}.{BLOCKED}taller.com/get/event/?{random characters}
- http://{BLOCKED}.{BLOCKED}taller.com/get/log/?{random characters}
- http://{BLOCKED}.{BLOCKED}taller.com/get/launch/?{random characters}
- http://{BLOCKED}.{BLOCKED}taller.com/get/session/?{random characters}
- http://{BLOCKED}.{BLOCKED}taller.com/get/event/?{random characters}
- http://{BLOCKED}.{BLOCKED}static.com/themes/theme_5/theme_5.zip
- http://{BLOCKED}.{BLOCKED}taller.com/get/file_size/?{random characters}
- http://cdn1.airdlrstatic.com/themes/theme_5/software_377.zip
SOLUTION
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 folders
- %User Temp%\{random folder name}
- %User Temp%\airinstaller
Step 3
Scan your computer with your Trend Micro product to delete files detected as ADW_AIRADINSTALLER. 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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