Backdoor

Backdoor:Win32/Lotok.CJ!MTB removal tips

Malware Removal

The Backdoor:Win32/Lotok.CJ!MTB is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Backdoor:Win32/Lotok.CJ!MTB virus can do?

  • A file was accessed within the Public folder.
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • Authenticode signature is invalid
  • A scripting utility was executed
  • Attempts to disable Windows Defender
  • Attempts to modify Windows Defender using PowerShell
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Backdoor:Win32/Lotok.CJ!MTB?



File Info:

name: C241B784D5BD23D1F777.mlw
path: /opt/CAPEv2/storage/binaries/c46585c4ab017ac9cea33cbb75ed5c70eb7cdf47b6f43c5a8cd564254e9f0a04
crc32: 3559F546
md5: c241b784d5bd23d1f777dc2f829e2a0e
sha1: 99e7ce3a76758063a67aef6241ab5d15b4e6ca10
sha256: c46585c4ab017ac9cea33cbb75ed5c70eb7cdf47b6f43c5a8cd564254e9f0a04
sha512: a5d1b8063a4bd025667a4d538e93443530eb05e35f9a1f34b1dbd931737c07ae407273c94fb3e882f4beb923203db19e0ee7765c48d7644120a36379bbd79b81
ssdeep: 49152:iOR5xhG/54f7gO7ynEcfm7j+wIkqkytgPPTyE4O4CKY4yTfC1LL:vxhG/5e376EcfmuwIkqkytgPr4GKY4y0
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T198958D617AE0C076D56B3630C77E57B9A2B5AD310F3902C366903E396AF44C2DA3875B
sha3_384: fff5ecd3e6ecf71e200b9b46adc1b463784c1b6393e1423703176f077d00462b291ad183f57c1ab03cd4acab6074c692
ep_bytes: e801e40000e995feffff8bff558bec6a
timestamp: 2023-08-03 08:09:57


Version Info:

CompanyName: Tenorshare
FileDescription: Reiboot
FileVersion: 2.1.2.1
LegalCopyright: Copyright (C) 2007-2021 Tenorshare Co.,Ltd.
ProductName: 2021-12-2 10:04:47
ProductVersion: 2.1.2.1
Translation: 0x0804 0x04b0

Backdoor:Win32/Lotok.CJ!MTB also known as:

BkavW32.AIDetectMalware
LionicTrojan.Win32.Agent.Y!c
CynetMalicious (score: 99)
FireEyeGeneric.mg.c241b784d5bd23d1
CAT-QuickHealBackdoor.Agent
McAfeeArtemis!C241B784D5BD
Cylanceunsafe
SangforBackdoor.Win32.Agent.Vwf0
K7AntiVirusRiskware ( 0040eff71 )
AlibabaTrojanDownloader:Win32/Generic.2fe96fb6
K7GWRiskware ( 0040eff71 )
SymantecML.Attribute.HighConfidence
Elasticmalicious (high confidence)
ESET-NOD32a variant of Win32/TrojanDownloader.Agent.HDF
APEXMalicious
KasperskyHEUR:Backdoor.Win32.Agent.gen
BitDefenderTrojan.Generic.34110474
NANO-AntivirusTrojan.Win32.Drop.jyyhmt
MicroWorld-eScanTrojan.Generic.34110474
AvastWin32:RATX-gen [Trj]
TencentWin32.Trojan-Downloader.Oader.Yylw
SophosMal/Generic-S
F-SecureTrojan.TR/Dldr.Agent.cgqau
DrWebTrojan.MulDrop23.10132
VIPRETrojan.GenericKD.68959353
TrendMicroTROJ_GEN.R011C0DHP23
McAfee-GW-EditionBehavesLike.Win32.Generic.th
Trapminesuspicious.low.ml.score
EmsisoftTrojan.Generic.34110474 (B)
IkarusTrojan-Downloader.Win32.Agent
GDataTrojan.Generic.34110474
AviraTR/Dldr.Agent.cgqau
MAXmalware (ai score=86)
Antiy-AVLTrojan[Backdoor]/Win32.Lotok
ArcabitTrojan.Generic.D2087C0A
ZoneAlarmHEUR:Backdoor.Win32.Agent.gen
MicrosoftBackdoor:Win32/Lotok.CJ!MTB
AhnLab-V3Backdoor/Win.Lotok.R600890
ALYacTrojan.GenericKD.68959353
TrendMicro-HouseCallTROJ_GEN.R011C0DHP23
RisingBackdoor.Lotok!8.111D5 (CLOUD)
FortinetW32/GenKryptik_AGen.ADK!tr
AVGWin32:RATX-gen [Trj]
DeepInstinctMALICIOUS
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Backdoor:Win32/Lotok.CJ!MTB?

Backdoor:Win32/Lotok.CJ!MTB removal tool
  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • “Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.

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About the author

Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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