TROJ_DROPPR.CQY
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It 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
152,954 bytes
EXE
Yes
13 May 2011
Arrival Details
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
It 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 Trojan drops the following file(s)/component(s):
- %User Temp%\adobe.exe
- %User Temp%\doc.doc - non-malicious file
- %User Temp%\lock.txt - non-malicious file
- %Program Files%\Common Files\ODBC\odbc.dll - non-malicious file
- %Windows%\java\jsp.cer - non-malicious
(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.. %Program Files% is the default Program Files folder, usually C:\Program Files.. %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)
It injects itself into the following processes as part of its memory residency routine:
- IEXPLORE.EXE
Other System Modifications
This Trojan adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Active Setup\Installed Components\{8E12AADC-A55E-3FBE-4C6E-6B6EAC7CAFB5}
StubPath = "%Windows%:adobeupdate.exe"
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}.{BLOCKED}.215.58
SOLUTION
8.900
8.154.06
13 May 2011
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
Restart in Safe Mode
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_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components
- {8E12AADC-A55E-3FBE-4C6E-6B6EAC7CAFB5}
- {8E12AADC-A55E-3FBE-4C6E-6B6EAC7CAFB5}
Step 4
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.
- %User Temp%\adobe.exe
- %User Temp%\doc.doc
- %User Temp%\lock.txt
- %Program Files%\Common Files\ODBC\odbc.dll
- %Windows%\java\jsp.cer
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_DROPPR.CQY. 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.
Did this description help? Tell us how we did.