TROJ_DLOADE.AQY
Windows 98, ME, NT, 2000, XP, Server 2003
Threat Type:
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan connects to certain URLs. It may do this to remotely inform a malicious user of its installation. It may also do this to download possibly malicious files onto the computer, which puts the computer at a greater risk of infection by other threats. It accesses websites to download files. This action allows this malware to possibly add other malware on the affected computer.
TECHNICAL DETAILS
Download Routine
This Trojan connects to the following malicious URLs:
- %User Temp%\nss3F.tmp\FINDPROCDLL.DLL
- %User Temp%\nss3F.tmp\KILLPROCDLL.DLL
- %User Temp%\LICENSEEN.BMP
- %System%\1028\desktop.ini
- %System%\1037\mfc71.dll
- %User Temp%\nss3F.tmp\INSTALLOPTIONS.DLL
- %User Temp%\nss3F.tmp\System.dll
- C:\windows\ld15.exe
- {BLOCKED}
- {BLOCKED}
- {BLOCKED}
It accesses websites to download the following files:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\ Xiirvnnvv- %System%\controll.exe
- %System%\dll.exe
- %System%\kill.bat
- %User Temp%\AGSetup.exe
- %User Temp%\hahayx.exe
- %User Temp%\THEWORLD_OEM_6.EXE
- %User Temp%\nsl42.tmp\IOSPECIAL.INI
- %User Temp%\nsl42.tmp\MODERN-WIZARD.BMP
- %Application Data%\MICROSOFT\INTERNET EXPLORER\QUICK LAUNCH\LAUNCH INTERNET EXPLORER BROWSER.LNK
(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.. %Application Data% is the current user's Application Data folder, which is usually C:\Windows\Profiles\{user name}\Application Data on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Application Data on Windows NT, and C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003.)
SOLUTION
Step 1
Terminate the malware/grayware/spyware process:
Step 2
Restore this modified 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.
- HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Installer\UserData\S-1-5-18\Products\904000001E872D116BF00006799C897E\Usage
- From: ProductNonBootFiles=3b8e002e
+ To: ProductNonBootFiles=36b2002d
- From: ProductNonBootFiles=3b8e002e
Step 3
Search and delete these files
- %System%\controll.exe
- %System%\dll.exe
- %System%\kill.bat
Note: To do a search for the following files, right-click Start then click Search... or Find..., depending on the version of Windows you are running. For each file to be deleted, type its file name in the Named input box. In the Look In drop-down list, select My Computer, then press Enter.
Step 4
Scan your computer with your Trend Micro product to delete files detected as
TROJ_DLOADE.AQY
*Note: 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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