Categories: Malware

Win32/LockScreen.AFA malicious file

The Win32/LockScreen.AFA 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 Win32/LockScreen.AFA virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • A process created a hidden window
  • Performs some HTTP requests
  • Uses Windows utilities for basic functionality
  • Attempts to restart the guest VM
  • Crashed cuckoomon during analysis. Report this error to the Github repo.
  • Installs itself for autorun at Windows startup
  • Network activity detected but not expressed in API logs
  • Anomalous binary characteristics

Related domains:

redirector.gvt1.com
r8—sn-bpb5oxu-3c2r.gvt1.com

How to determine Win32/LockScreen.AFA?


File Info:

crc32: 4E26200Fmd5: 101a082460dc3c34f1cbc8a4e503ab4fname: 101A082460DC3C34F1CBC8A4E503AB4F.mlwsha1: 1abc1b8ab75fa3463260036f4e0968764286c1f2sha256: 4b13aa2bec475775354ed0a697c7e41b579d98b20ce57dafe8612e87996ad248sha512: 066de742bbeec5486b5ad3998f62e1e25e62282166e676a48e0e7283c368ff325727de981d4444864c998dbfea543fdee86a4b4f06d0093fa1921efe9771ca93ssdeep: 6144:OXkSEpAh3/HI6qGqyInpCxwep495V+DB:O/E8qyInOmQDBtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (c) 2011InternalName: MysticFileVersion: 2.0CompanyName: x41ex41ex41e x417x430x43ax440x438x43fx442x443x439ProductName: The space invader corp.ProductVersion: 2.0))FileDescription: Mystic compressorOriginalFilename: MysticTranslation: 0x0409 0x04b0

Win32/LockScreen.AFA also known as:

Elastic malicious (high confidence)
DrWeb Trojan.MulDrop.65387
Cylance Unsafe
CrowdStrike win/malicious_confidence_70% (D)
K7GW Trojan ( 0055e4091 )
K7AntiVirus Trojan ( 0055e4091 )
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/LockScreen.AFA
APEX Malicious
Paloalto generic.ml
Cynet Malicious (score: 100)
Alibaba Ransom:Win32/HmBlocker.fbcc8138
NANO-Antivirus Trojan.Win32.HmBlocker.diqaa
ViRobot Trojan.Win32.A.HmBlocker.143360.B
Tencent Win32.Trojan.Hmblocker.Dtiw
Sophos ML/PE-A + Mal/FakeAV-MR
BitDefenderTheta Gen:NN.ZexaF.34690.mu0@ayqRpBlO
VIPRE Trojan-Ransom.Win32.HmBlocker.dlk (v)
McAfee-GW-Edition Artemis!Trojan
FireEye Generic.mg.101a082460dc3c34
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan/HmBlocker.boe
Avira TR/Crypt.ZPACK.Gen
Antiy-AVL Trojan/Generic.ASMalwS.1897B81
Microsoft Trojan:Win32/Bulta!rfn
AegisLab Trojan.Win32.HmBlocker.j!c
McAfee Artemis!101A082460DC
MAX malware (ai score=97)
VBA32 Trojan.ExpProc.014
Rising Ransom.HmBlocker!8.2A63 (CLOUD)
Yandex Trojan.HmBlocker!sHLj+GMdP+k
Ikarus Trojan.Win32.LockScreen
Fortinet W32/BrowHost.KP!tr

How to remove Win32/LockScreen.AFA?

  • 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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