Categories: Malware

Bulz.171391 malicious file

The Bulz.171391 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 Bulz.171391 virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (3 unique times)
  • Creates RWX memory
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Performs some HTTP requests
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • The executable is likely packed with VMProtect
  • Uses Windows utilities for basic functionality
  • Tries to suspend Cuckoo threads to prevent logging of malicious activity
  • A process attempted to delay the analysis task by a long amount of time.
  • Tries to unhook or modify Windows functions monitored by Cuckoo
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Installs itself for autorun at Windows startup
  • Creates a copy of itself

Related domains:

qq1218143595.e1.luyouxia.net
users.qzone.qq.com
ocsp.dcocsp.cn
crl3.digicert.com
crl4.digicert.com

How to determine Bulz.171391?


File Info:

crc32: 870EF919md5: c71bc644e5a8670940bb091f1e6f7002name: C71BC644E5A8670940BB091F1E6F7002.mlwsha1: afcf8f1a476a69c5437f26f4f5fe9e804596384dsha256: bfe5a7e03d6d57dae9d1eb74e5a1d837a04ac3c9c9822e1ee26c6a586c6a7342sha512: ab345307d325ab8b2bb5ba3897a857f0c4845be03503f7383d9be830a985ca6974ac4ebe3bfdeb241b2ce5d16a156e7e09c7ab6baafe6eb47d17b1eac4fe3f7fssdeep: 98304:nHaZutELxnX125iYCpMEDD+SchEif9HRO3qCtyaiAb3xAaWeX1HYDW3kxQGY+WM:HaZkAnFVYA7D2EORshoAb3x4YHYaiQGtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: (C) 360.cn All Rights Reserved.InternalName: 360RestoreFileVersion: 2, 0, 0, 3065CompanyName: 360.cnProductName: 360x5b89x5168x536bx58ebProductVersion: 2, 0, 0, 3065FileDescription: 360x5b89x5168x536bx58eb x9694x79bbx533ax6a21x5757OriginalFilename: 360Restore.exeTranslation: 0x0409 0x04b0

Bulz.171391 also known as:

Elastic malicious (high confidence)
DrWeb Trojan.MulDrop16.47281
Cynet Malicious (score: 100)
ALYac Gen:Variant.Bulz.171391
Cylance Unsafe
CrowdStrike win/malicious_confidence_90% (W)
K7GW Trojan ( 0057beec1 )
K7AntiVirus Trojan ( 0057beec1 )
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Generik.CBHHOJN
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky Backdoor.Win32.Farfli.bvos
BitDefender Gen:Variant.Bulz.171391
MicroWorld-eScan Gen:Variant.Bulz.171391
Tencent Win32.Backdoor.Farfli.Swkp
Ad-Aware Gen:Variant.Bulz.171391
Sophos Mal/Generic-S
Comodo Malware@#3rl80ejdzm6jq
BitDefenderTheta Gen:NN.ZexaF.34688.@B0@amxGy!dj
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
FireEye Generic.mg.c71bc644e5a86709
Emsisoft Gen:Variant.Bulz.171391 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Malware.Gen
Avira BDS/Farfli.exewh
Kingsoft Win32.Hack.Farfli.bv.(kcloud)
Microsoft Trojan:Win32/Wacatac.B!ml
AegisLab Trojan.Win32.Bulz.4!c
GData Gen:Variant.Bulz.171391
AhnLab-V3 Malware/Win32.RL_Generic.R326147
McAfee Artemis!C71BC644E5A8
MAX malware (ai score=84)
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_GEN.R002H09E421
Rising Backdoor.Farfli!8.B4 (CLOUD)
Ikarus Trojan.SuspectCRC
Fortinet W32/PossibleThreat
AVG Win32:Trojan-gen
Paloalto generic.ml

How to remove Bulz.171391?

  • 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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