ADW_BROXY
Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
![](/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
5,583,952 bytes
EXE
No
05 Jun 2014
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%\{malware file name}download_4\{malware file name}
(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 Profile%\Application Data\Oxy
- %User Temp%\{malware file name}download_4
- %User Temp%\tmpA
- %User Temp%\tmp16
(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.. %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 deletes the following files:
- %User Temp%\EEB37C89B1F9EC550DE5700B379C2688.ini
- %User Temp%\setup.exe
- %User Temp%\E9D303A1BD7907154244326ECE7E1D90.ini
(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 adds the following registry keys:
HKEY_CURRENT_USER\Software\Escolade
HKEY_CURRENT_USER\Software\Ascensio System\
Task Scheduler
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Escolade
GUID = "71e1f1b0e64d11e3a6cf0050569f3b80"
HKEY_CURRENT_USER\Software\Ascensio System\
Task Scheduler
SchedulerState = "2"
Dropping Routine
This adware drops the following files:
- %User Temp%\{malware file name}_000132.log
- %User Temp%\htmlayout.dll
- %User Profile%\Oxy\config.xml
- %Windows%\Tasks\PileFile reminder.job
- %Windows%\Tasks\PileFile logon.job
- %User Temp%\tmpD.exe
- %User Temp%\tmp19.exe
- %User Temp%\awh10.tmp
- %User Temp%\awh13.tmp
- %User Temp%\awh1C.tmp
(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.. %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.. %Windows% is the Windows folder, which is usually C:\Windows.)
Other Details
This adware connects to the following possibly malicious URL:
- {BLOCKED}1.11.88
- {BLOCKED}0.1
- {BLOCKED}209.45
- {BLOCKED}.49.180
This report is generated via an automated analysis system.
SOLUTION
9.700
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
- Escolade
- In HKEY_CURRENT_USER\Software\Ascensio System
- Task Scheduler
Step 3
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\Escolade
- GUID = "71e1f1b0e64d11e3a6cf0050569f3b80"
- In HKEY_CURRENT_USER\Software\Ascensio System\Task Scheduler
- SchedulerState = "2"
Step 4
Search and delete these components
- %User Temp%\{malware file name}_000132.log
- %User Temp%\htmlayout.dll
- %User Profile%\Oxy\config.xml
- %Windows%\Tasks\PileFile reminder.job
- %Windows%\Tasks\PileFile logon.job
- %User Temp%\tmpD.exe
- %User Temp%\tmp19.exe
- %User Temp%\awh10.tmp
- %User Temp%\awh13.tmp
- %User Temp%\awh1C.tmp
Step 5
Search and delete these folders
- %User Profile%\Application Data\Oxy
- %User Temp%\{malware file name}download_4
- %User Temp%\tmpA
- %User Temp%\tmp16
Step 6
Scan your computer with your Trend Micro product to delete files detected as ADW_BROXY. 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 7
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.
- %User Temp%\EEB37C89B1F9EC550DE5700B379C2688.ini
- %User Temp%\setup.exe
- %User Temp%\E9D303A1BD7907154244326ECE7E1D90.ini
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