Categories: RansomTrojan

Trojan-Ransom.Win32.Blocker.lcjk removal instruction

The Trojan-Ransom.Win32.Blocker.lcjk 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 Trojan-Ransom.Win32.Blocker.lcjk virus can do?

  • A process attempted to delay the analysis task.
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Performs some HTTP requests
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Looks up the external IP address
  • Uses Windows utilities for basic functionality
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Checks the version of Bios, possibly for anti-virtualization
  • Checks the CPU name from registry, possibly for anti-virtualization
  • Attempts to modify proxy settings
  • Attempts to disable UAC
  • Attempts to modify UAC prompt behavior
  • Collects information to fingerprint the system

Related domains:

icanhazip.com

How to determine Trojan-Ransom.Win32.Blocker.lcjk?


File Info:

crc32: C6A64E75md5: 6b3c4a7d87402f9317f580115e33e35cname: 6B3C4A7D87402F9317F580115E33E35C.mlwsha1: d2c0ec90833842684a0cc961ae3a00e86a8af31csha256: 56ca502d510f858e05f5a4e55443e9b104e7971ad344f886d2da81bc0e6e5868sha512: 1e0e630b1e7cf8d73c28f3533825c4bfdf524b0b0ebf4e0c9a6b7245ee599ff44a405874b85e339c98b100e41f3a78495c51771834025ff5a5763b99ecbb6fbfssdeep: 24576:eq5TfcdHj4fmb5B7rQsRdHYY9onW2xzrQsRdHYY9okKWWrQsRdHYY9okeWXc:eUTsam9FUsbHToW2VUsbHTokNWUsbHTtype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: xa9 2003 - 2015 Microsoft CorporationFileVersion: 7.12.23.95Comments: SkypeFileDescription: Skype Technologies S.A.Translation: 0x0809 0x04b0

Trojan-Ransom.Win32.Blocker.lcjk also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Spyware ( 004d8c0a1 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoad4.11093
Cynet Malicious (score: 100)
ALYac AIT:Trojan.Nymeria.402
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Blocker.3892f1d8
K7GW Spyware ( 004d8c0a1 )
Cybereason malicious.d87402
Baidu Multi.Threats.InArchive
Cyren W32/AutoIt.TA.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 multiple detections
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Malware.Autoit-6961072-0
Kaspersky Trojan-Ransom.Win32.Blocker.lcjk
BitDefender AIT:Trojan.GenericTKA.26
NANO-Antivirus Trojan.Win32.AutoIt.ffkjhm
MicroWorld-eScan AIT:Trojan.GenericTKA.26
Tencent Malware.Win32.Gencirc.10b79e80
Ad-Aware AIT:Trojan.GenericTKA.26
Sophos Mal/Generic-S
Comodo Malware@#2zzf90e6jrbkl
BitDefenderTheta AI:Packer.DBCB5E9518
McAfee-GW-Edition BehavesLike.Win32.TrojanAitInject.tc
FireEye Generic.mg.6b3c4a7d87402f93
Emsisoft AIT:Trojan.GenericTKA.26 (B)
Avira TR/Spy.Autoit.qzqid
eGambit Unsafe.AI_Score_97%
Antiy-AVL Trojan/Generic.ASCommon.168
Microsoft Trojan:Win32/Occamy.C
Arcabit AIT:Trojan.GenericTKA.26
AegisLab Trojan.Win32.Generic.4!c
GData AIT:Trojan.Nymeria.402 (5x)
AhnLab-V3 Malware/Win32.Generic.C1253453
McAfee Artemis!6B3C4A7D8740
MAX malware (ai score=99)
Malwarebytes Malware.AI.1013873878
Panda Trj/CI.A
Rising Spyware.AutoLOG/Autoit!1.C9CE (CLASSIC)
Ikarus Dropper.AutoIt
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/AutoIt.CB!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Trojan-Ransom.Win32.Blocker.lcjk?

  • 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.
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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