TROJ_DROPPR.KDS

October 09, 2012
 Analysis by: Abraham Latimer Camba
 Modified by: Christopher Daniel So
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

It does not have any propagation routine.

It does not have any backdoor routine.

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

It does not have any downloading capability.

It does not have any information-stealing capability.

  TECHNICAL DETAILS

File Size:

20,992 bytes

File Type:

DLL

Initial Samples Received Date:

31 May 2012

Arrival Details

This Trojan may be dropped by the following malware:

  • TROJ_ARTIEF.KDS

Autostart Technique

This Trojan creates the following registry entries to enable automatic execution of dropped component at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
taskday = "%Windows%\tasks\conime.exe"

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Dropping Routine

This Trojan drops the following files:

  • %Windows%\Tasks\conime.exe - detected by Trend Micro as TROJ_DLOADER.KDS

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

Download Routine

This Trojan does not have any downloading capability.

Information Theft

This Trojan does not have any information-stealing capability.

NOTES:

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

9.168.01

FIRST VSAPI PATTERN DATE:

04 Jun 2012

VSAPI OPR PATTERN File:

9.169.00

VSAPI OPR PATTERN Date:

05 Jun 2012

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 files dropped/downloaded by TROJ_DROPPR.KDS

    • TROJ_DLOADER.KDS

Step 3

Remove the malware/grayware file that dropped/downloaded TROJ_DROPPR.KDS

Step 4

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
    • taskday = "%Windows%\tasks\conime.exe"

Step 5

Scan your computer with your Trend Micro product to delete files detected as TROJ_DROPPR.KDS. 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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