Categories: Malware

Win32/Injector.QLW malicious file

The Win32/Injector.QLW 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/Injector.QLW virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Drops a binary and executes it
  • Executed a process and injected code into it, probably while unpacking
  • Likely installs a bootkit via raw harddisk modifications
  • Deletes its original binary from disk
  • Attempts to restart the guest VM
  • Network activity detected but not expressed in API logs
  • Creates a copy of itself
  • Anomalous binary characteristics

How to determine Win32/Injector.QLW?


File Info:

crc32: 468ABB05md5: ea7f0458925a99ce05d8d38a887938dbname: EA7F0458925A99CE05D8D38A887938DB.mlwsha1: b21925a23d24eda566cf77c29a12250a0f0395a4sha256: a0159bb2f97957ab1934901edf1a2cc5ff2bae980348e1946d658bcf4377aa0fsha512: 5c2a20da2a94a14029066d1f8074d4447974f254b5a1f03b6569fb5eb5f19339cb08088cf3d40097e1e533d46505a226cb994b3a32888f97dc95ec648362371dssdeep: 3072:xO4I3W8Ph7YPKt9jY5GFdF81jhweX4TILFhEIVc:B5h1Fw84cLFetype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0InternalName: EfXzOqFileVersion: 8.00.0013CompanyName: QWpwmLegalTrademarks: ZLaeProductName: HDPfProductVersion: 8.00.0013OriginalFilename: EfXzOq.exe

Win32/Injector.QLW also known as:

Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 004d4a2d1 )
Elastic malicious (high confidence)
DrWeb Trojan.Winlock.5908
Cynet Malicious (score: 100)
ALYac Gen:Heur.ManBat.1
Cylance Unsafe
Zillya Trojan.MBRlock.Win32.421
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Ransom:Win32/HmBlocker.94c98c5a
K7GW Trojan ( 004d4a2d1 )
Cybereason malicious.8925a9
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.QLW
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.HmBlocker.nxog
BitDefender Gen:Heur.ManBat.1
NANO-Antivirus Trojan.Win32.HmBlocker.eibsmx
MicroWorld-eScan Gen:Heur.ManBat.1
Tencent Win32.Trojan.Hmblocker.Alsp
Ad-Aware Gen:Heur.ManBat.1
Sophos ML/PE-A + Mal/VB-ADS
BitDefenderTheta Gen:NN.ZevbaF.34690.hm0@a8Q27!di
VIPRE Trojan.Win32.Generic.pak!cobra
McAfee-GW-Edition BehavesLike.Win32.Trojan.cm
FireEye Generic.mg.ea7f0458925a99ce
Emsisoft Gen:Heur.ManBat.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.HmBlocker.m
Avira TR/Dropper.Gen
eGambit Generic.Malware
Antiy-AVL Trojan/Generic.ASMalwS.ACB766
Microsoft Trojan:Win32/Dynamer!ac
AegisLab Trojan.Win32.HmBlocker.j!c
GData Gen:Heur.ManBat.1
TACHYON Ransom/W32.VB-HmBlocker.130048
McAfee Artemis!EA7F0458925A
MAX malware (ai score=100)
VBA32 BScope.Trojan-Ransom.Winlock.2741
Panda Trj/CI.A
Rising Ransom.HmBlocker!8.2A63 (CLOUD)
Yandex Trojan.GenAsa!9D8KYEbAqXg
Ikarus Trojan-Ransom.Gimemo
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/VB.IKK!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Injector.QLW?

  • 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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