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Infection Channel: Dropped by other malware

This Trojan may be dropped by other malware.

Technical Details

File size: 1,186 bytes
File type: TMP
Initial samples received date: 20 Mar 2013
Payload: Deletes files

Arrival Details

This Trojan may be dropped by the following malware:



It checks if the system type is one of the following:

  • AIX
  • HP-UX
  • Linux
  • SunOS

If the system type is one of the aforementioned, it will try to overwrite the disk partitions or delete the following folders:

  • /etc/
  • /home/
  • /kernel/
  • /usr/


Minimum scan engine: 9.300
First VSAPI Pattern File: 9.804.03
First VSAPI Pattern Release Date: 21 Mar 2013
VSAPI OPR Pattern Version: 9.805.00
VSAPI OPR Pattern Release Date: 21 Mar 2013

Step 1

Remove the malware/grayware file that dropped/downloaded UNIX_KILLMBR.A

Step 2

Scan your computer with your Trend Micro product to delete files detected as UNIX_KILLMBR.A. 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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Analysis By: Abraham Latimer Camba

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