Analysis by: Mohammed Malubay
ALIASES:

a variant of Win32/Agent.QZA trojan(NOD32);

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • 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.

  TECHNICAL DETAILS

File Size: 8,421,376 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 08 Oct 2020

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.

Adware Routine

This Trojan adds and runs the following services:

  • Service Name:MicrosoftSecurityManager
    • Display Name: Microsoft Security Manager
    • Binary Pathname: {malware directory}\malware filename.exe
    • Description: Monitors the activity of network activity, in order to detect suspicious traffic

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 16.274.08
FIRST VSAPI PATTERN DATE: 08 Oct 2020
VSAPI OPR PATTERN File: 16.275.00
VSAPI OPR PATTERN Date: 09 Oct 2020

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

  • TROJ.Win32.TRX.XXPE50FFF037E0002

Step 2

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 3

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 4

Restart in normal mode and scan your computer with your Trend Micro product for files detected as Trojan.Win64.DENES.AA. 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.

Step 5

Disable this malware service

[ Learn More ]
  • MicrosoftSecurityManager

Step 6

Restart in Safe Mode

[ Learn More ]


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