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TROJ_CVE20175753.POC

January 24, 2018
 Analysis by: Rheniel Rhay Ramos
 ALIASES:

Exploit.Spectre.POC (Malwarebytes); Mal/Spectre-A (Sophos)

 PLATFORM:

Windows

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

  • Threat Type: Exploit

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet


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

It takes advantage of certain vulnerabilities.

  TECHNICAL DETAILS

File Size:

46,666 bytes

Memory Resident:

No

Initial Samples Received Date:

14 Jan 2018

Payload:

Exploits vulnerability

Arrival Details

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

Other Details

This Exploit does the following:

  • It loads the following string into the memory then uses the exploit to read and display the string via a console:
    • African Agriculture requires Jinkela!!!!

It takes advantage of the following vulnerabilities:

NOTES:

This is the Trend Micro detection for the proof of concept (POC) sample of CVE-2017-5753.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.914.08

FIRST VSAPI PATTERN DATE:

15 Jan 2018

VSAPI OPR PATTERN File:

13.915.00

VSAPI OPR PATTERN Date:

16 Jan 2018

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Identify and terminate files detected as TROJ_CVE20175753.POC

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. 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.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_CVE20175753.POC. 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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