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Trojan.Win32.KILLAV.WLEBB

August 12, 2022
 Analysis by: Nathaniel Gregory Ragasa
 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet


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:

115,200 bytes

File Type:

EXE

Memory Resident:

No

Payload:

Terminates processes

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.

Process Termination

This Trojan terminates the following processes if found running in the affected system's memory:

  • dsa.exe
  • ds_monitor.exe
  • Notifier.exe
  • ds_nuagent.exe
  • coreServiceShell.exe
  • Amsp.exe
  • uiWatchDog.exe
  • uiWinMgr.exe
  • PccNt.exe
  • TmWSCSvc.exe
  • TmCCSF.exe
  • ESEFrameworkHost.exe
  • svcGenericHost.exe
  • TMBMSRV.exe
  • iCRCService.exe
  • tmicAgentSetting.exe
  • OfcService.exe
  • DbServer.exe
  • NTRTScan.exe
  • CNTAoSMgr.exe
  • SRService.exe
  • LWCSService.exe
  • DbServer.exe
  • ofcDdaSvr.exe
  • PccNTMon.exe
  • TmListen.exe
  • iVPAgent.exe
  • TmPfw.exe
  • ESClient.exe
  • TmSSClient.exe
  • TmsaInstance64.exe
  • ESEServiceShell.exe
  • ESEFrameworkHost.exe

Other Details

This Trojan requires the following additional components to properly run:

  • mhyprot2.sys → Genshin Impact Anti-Cheat Driver

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

17.736.06

FIRST VSAPI PATTERN DATE:

08 Aug 2022

VSAPI OPR PATTERN File:

17.737.00

VSAPI OPR PATTERN Date:

09 Aug 2022

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.XXPE50FFF059

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

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.KILLAV.WLEBB. 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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