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ELF_DDOSTK.A

August 06, 2015
 Analysis by: David John Agni
 PLATFORM:

Linux, UNIX

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This malware is the payload for the BIND Denial of Service vulnerability assigned with CVE-2015-5477. Once this vulnerability is successfully exploited, it could launch denial of service attacks.

To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Threat Diagram shown below.

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It launches denial of service (DoS) attacks against certain websites. It does the said routine to prevent users from reaching these sites at a given time.

It takes advantage of certain vulnerabilities.

  TECHNICAL DETAILS

File Size:

9,007 bytes

File Type:

ELF

Memory Resident:

Yes

Initial Samples Received Date:

06 Aug 2015

Payload:

Launches denial of service attacks

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Denial of Service (DoS) Attack

This Trojan launches DoS attacks against the following websites:

  • {entered parameter}

Other Details

As of this writing, there is no available patch for this vulnerability.

It takes advantage of the following vulnerabilities:

NOTES:

It accepts the following parameter:

  • {target hostname}

  SOLUTION

Minimum Scan Engine:

9.750

VSAPI OPR PATTERN File:

11.837.00

VSAPI OPR PATTERN Date:

06 Aug 2015

Step 1

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 2

Scan your computer with your Trend Micro product to delete files detected as ELF_DDOSTK.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 the following Trend Micro Support pages for more information:


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