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Trojan.MacOS.NUKESPED.YXBB-A

April 09, 2021
 Analysis by: Karen Ivy Titiwa
 ALIASES:

HEUR:Backdoor.OSX.Nukesped.d(KASPERSKY); Trojan.MAC.Generic.12195(BITDEFENDER)

 PLATFORM:

OSX

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW


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 executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.

  TECHNICAL DETAILS

File Size:

57376 bytes

File Type:

Other

Memory Resident:

Yes

Initial Samples Received Date:

18 Feb 2021

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.

Backdoor Routine

This Trojan executes the following commands from a remote malicious user:

  • Read in memory Configuration data
  • Edit in memory Configuration data
  • Upload current in memory Configuration data
  • Secure Delete
  • Download File from C&C
  • Upload File From C&C
  • Execute command
  • Execute Process
  • List Files and directories
  • Test Connection

It connects to the following websites to send and receive information:

  • https://{BLOCKED}eker.com/redirect.php
  • https://{BLOCKED}keystroke.com/pockbackx.php
  • https://www.{BLOCKED}te.it/administrator/help/en-GB/bins/tags/taghelper.php

Other Details

This Trojan does the following:

  • Checks if there is a configuration file available to load (/private/etc/krb5d.conf)
    • If none, it’s default is to connect to https://www.{BLOCKED}te.it/administrator/help/en-GB/bins/tags/taghelper.php

  SOLUTION

Minimum Scan Engine:

10.000

FIRST VSAPI PATTERN FILE:

1.460.00

FIRST VSAPI PATTERN DATE:

04 Dec 2019

VSAPI OPR PATTERN File:

1.460.00

VSAPI OPR PATTERN Date:

28 Jan 2020

Scan your computer with your Trend Micro product to delete files detected as Trojan.MacOS.NUKESPED.YXBB-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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