Categories: Malware

Strictor.271139 (B) removal instruction

The Strictor.271139 (B) 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 Strictor.271139 (B) virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Anomalous file deletion behavior detected (10+)
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • HTTPS urls from behavior.
  • Enumerates running processes
  • Drops a binary and executes it
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is likely packed with VMProtect
  • Authenticode signature is invalid
  • Tries to suspend Cuckoo threads to prevent logging of malicious activity
  • Tries to unhook or modify Windows functions monitored by Cuckoo
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Created a process from a suspicious location
  • Network activity contains more than one unique useragent.
  • Attempts to modify proxy settings
  • Harvests cookies for information gathering

How to determine Strictor.271139 (B)?


File Info:

name: FD05D64431637A61FABD.mlwpath: /opt/CAPEv2/storage/binaries/97d56511acc91dbfec9c10a86155dc8a2cebd391718e58f2e2aee3f2307e1b45crc32: D1ED6B39md5: fd05d64431637a61fabde6b42a3bb365sha1: 4945aee9a5802e4454d98c62233d8963df10f52bsha256: 97d56511acc91dbfec9c10a86155dc8a2cebd391718e58f2e2aee3f2307e1b45sha512: a679d1b6fed8b3554df9d96f002536f04d283eec66c8ab74b4720f9e84760f141a8033d4fbc32224984736391023d79498cc87290063a04c2750c062202feb51ssdeep: 196608:RVl95jsXHe+NjSttXRcCFPd3rA6Ls0q+n:RVl95jUe8ERzFlE6Lxqtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T16E66337726540281D1E3C9319A37BEC5F2F6025F4642E8B8A9DABDC13C178F5E61A9C3sha3_384: 8479905f792892c9d7cfe24a4caa58994cc0cb7e2349092c903792b2fe959907c8f0618ff05ab021a051dc7a43b5e777ep_bytes: 68a9a2e9b7e812114900f7d2c1ca02e9timestamp: 2019-08-25 13:02:36

Version Info:

Comments: yuuxia@gmail.comCompanyName: 1234rxjh.COMFileDescription: 热血江湖FileVersion: 2, 1, 7, 0InternalName: 热血江湖LegalCopyright: Copy Right (C) RXJH2 2008-2020LegalTrademarks: 热血江湖OriginalFilename: 热血江湖.EXEPrivateBuild: yuuxia@gmail.comProductName: 热血江湖ProductVersion: 2, 1, 7, 0SpecialBuild: yuuxia@gmail.comTranslation: 0x0804 0x04b0

Strictor.271139 (B) also known as:

Bkav W32.AIDetect.malware2
tehtris Generic.Malware
MicroWorld-eScan Gen:Variant.Strictor.271139
FireEye Generic.mg.fd05d64431637a61
McAfee Artemis!FD05D6443163
Cylance Unsafe
Cybereason malicious.9a5802
BitDefenderTheta Gen:NN.ZexaF.34742.@B0@auUjTJaj
Elastic malicious (high confidence)
Kaspersky UDS:Trojan-Downloader.Win32.Agent.gen
BitDefender Gen:Variant.Strictor.271139
Avast Win32:Malware-gen
Rising Trojan.Generic@AI.100 (RDML:C7e2ll9VHquqWm0FcNQxug)
Ad-Aware Gen:Variant.Strictor.271139
Sophos Generic ML PUA (PUA)
McAfee-GW-Edition BehavesLike.Win32.Generic.vc
SentinelOne Static AI – Malicious PE
Emsisoft Gen:Variant.Strictor.271139 (B)
GData Gen:Variant.Strictor.271139
Arcabit Trojan.Strictor.D42323
Microsoft Trojan:Win32/Wacatac.B!ml
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win.Malware-gen.R479814
ALYac Gen:Variant.Strictor.271139
Malwarebytes Malware.AI.1672654389
APEX Malicious
MAX malware (ai score=83)
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/PossibleThreat
AVG Win32:Malware-gen
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_60% (W)

How to remove Strictor.271139 (B)?

  • 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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