Analysis by: John Anthony Banes
ALIASES:

Exploit.CVE-2017-11882 (Ikarus); Win32/Exploit.CVE-2017-11882.K (NOD32); Exp/201711882-A (Sophos Lite)

 PLATFORM:

Windows

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

  • Threat Type: Exploit

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Exploit arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

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

  TECHNICAL DETAILS

File Size: 52,257 bytes
File Type: RTF
Memory Resident: No
Initial Samples Received Date: 06 Dec 2017

Arrival Details

This Exploit arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

Other Details

This Exploit connects to the following possibly malicious URL:

  • {BLOCKED}.{BLOCKED}.73.19/s/aq.exe

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

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 13.826.05
FIRST VSAPI PATTERN DATE: 06 Dec 2017
VSAPI OPR PATTERN File: 13.827.00
VSAPI OPR PATTERN Date: 07 Dec 2017

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

Scan your computer with your Trend Micro product to delete files detected as TROJ_RTFCVE201711882.F. 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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