TROJ_DLOAD.EUIQ
Trojan-Downloader.Win32.Genome.dana (Kaspersky); Trojan:Win32/Camec.D (Microsoft)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Trojan may be downloaded by other malware/grayware/spyware from remote sites.
It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
TECHNICAL DETAILS
Arrival Details
This Trojan may be downloaded by other malware/grayware/spyware from remote sites.
It may be downloaded from the following remote sites:
- {BLOCKED}.{BLOCKED}.196.130
Other System Modifications
This Trojan deletes the following files:
- c:\Arquivos de Programas (x86)\GbPlugin\gbieh.dll
- c:\Arquivos de Programas\GbPlugin\gbieh.dll
- C:\Program Files (x86)\GbPlugin\gbieh.dll
It adds the following registry keys:
HKEY_CLASSES_ROOT\facebooktoolbar.LG_Class
It creates the following registry entry(ies) to bypass Windows Firewall:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\GloballyOpenPorts\
List
1433:TCP = "1433:TCP:Enabled:icq"
Download Routine
This Trojan accesses the following websites to download files:
- http://{BLOCKED}.{BLOCKED}.196.130/facebooktoolbar.dll - detected as TROJ_BHO.OHNO
It saves the files it downloads using the following names:
- %Windows%\addins\facebooktoolbar.dll
(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
SOLUTION
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
Remove malware/grayware files dropped/downloaded by TROJ_DLOAD.EUIQ
- TROJ_BHO.OHNO
Step 3
Identify and terminate files detected as TROJ_DLOAD.EUIQ
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
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\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List
- 1433:TCP = "1433:TCP:Enabled:icq"
- 1433:TCP = "1433:TCP:Enabled:icq"
Step 5
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_CLASSES_ROOT
- facebooktoolbar.LG_Class
- facebooktoolbar.LG_Class
Step 6
Scan your computer with your Trend Micro product to delete files detected as TROJ_DLOAD.EUIQ. 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.
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