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Threat Encyclopedia

TROJ_INJECT.ART


PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

OVERALL RISK RATING:
DAMAGE POTENTIAL:
DISTRIBUTION POTENTIAL:
REPORTED INFECTION:

  • Threat Type:Trojan

  • Destructiveness:No

  • Encrypted: Yes

  • In the wild: Yes

OVERVIEW


It enumerates running services and randomly chooses a service name to use as its file name.

This Trojan may be dropped by other malware.

It adds registry entries to enable its automatic execution at every system startup.

However, as of this writing, the said sites are inaccessible.

TECHNICAL DETAILS

File Size:

20,992 bytes

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

14 Dec 2010

Arrival Details

This Trojan may be dropped by the following malware:

  • TROJ_ARTIEF.SM

Installation

This Trojan stays memory-resident by injecting codes into the following processes:

  • svchost.exe

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{malware file name} = %User Profile\Local Settings\{malware file name}.exe

Other Details

This Trojan connects to the following possibly malicious URL:

  • 96.{BLOCKED}1.231.{BLOCKED}5

It does the following:

  • Enumerates running services and randomly chooses a service name to use as its file name

However, as of this writing, the said sites are inaccessible.

SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.702.01

FIRST VSAPI PATTERN DATE:

15 Dec 2010

Step 1

For Windows ME and XP users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Remove malware files dropped/downloaded by TROJ_INJECT.ART

Step 3

Scan your computer with your Trend Micro product and note files detected as TROJ_INJECT.ART

Step 4

Restart in Safe Mode

[ Learn More ]

Step 5

Delete this registry value

[ Learn More ]

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\Microsoft\Windows\CurrentVersion\Run
    • {malware file name} = %User Profile\Local Settings\{malware file name}.exe

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_INJECT.ART 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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