Analysis by: Cris Nowell Pantanilla
 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This is the Trend Micro detection for HOSTS files that are modified by SIMDA variants.

This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

File Size: 1509 bytes
File Type: TXT
Memory Resident: No
Initial Samples Received Date: 10 Apr 2015

Arrival Details

This Trojan may be dropped by other malware.

NOTES:

This is the Trend Micro detection for the modified HOSTS files to redirect users once the following Web site(s) are accessed:

  • {BLOCKED}.{BLOCKED}3.9.209 www.google-analytics.com.
  • {BLOCKED}.{BLOCKED}3.9.209 google-analytics.com.
  • {BLOCKED}.{BLOCKED}3.9.209 connect.facebook.net.
  • {BLOCKED}.{BLOCKED}2.254.157 www.google-analytics.com.
  • {BLOCKED}.{BLOCKED}2.254.157 google-analytics.com.
  • {BLOCKED}.{BLOCKED}2.254.157 connect.facebook.net.
  • {BLOCKED}.{BLOCKED}9.206.115 www.google-analytics.com.
  • {BLOCKED}.{BLOCKED}9.206.115 google-analytics.com.
  • {BLOCKED}.{BLOCKED}9.206.115 connect.facebook.net.

  SOLUTION

Minimum Scan Engine: 9.750
VSAPI OPR PATTERN File: 11.597.00
VSAPI OPR PATTERN Date: 10 Apr 2015

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

Remove these strings added by the malware/grayware/spyware in the HOSTS file

[ Learn More ]
    • {BLOCKED}.{BLOCKED}3.9.209 www.google-analytics.com.
    • {BLOCKED}.{BLOCKED}3.9.209 google-analytics.com.
    • {BLOCKED}.{BLOCKED}3.9.209 connect.facebook.net.
    • {BLOCKED}.{BLOCKED}2.254.157 www.google-analytics.com.
    • {BLOCKED}.{BLOCKED}2.254.157 google-analytics.com.
    • {BLOCKED}.{BLOCKED}2.254.157 connect.facebook.net.
    • {BLOCKED}.{BLOCKED}9.206.115 www.google-analytics.com.
    • {BLOCKED}.{BLOCKED}9.206.115 google-analytics.com.
    • {BLOCKED}.{BLOCKED}9.206.115 connect.facebook.net.

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_HOSIMDA.SM. 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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