Categories: Malware

How to remove “Win32/Injector.ZEJ”?

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

  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Behavioural detection: Injection (inter-process)
  • Spoofs its process name and/or associated pathname to appear as a legitimate process

How to determine Win32/Injector.ZEJ?


File Info:

name: 1422ACEC6F7013EF7EBB.mlwpath: /opt/CAPEv2/storage/binaries/47fe06172812619381de4c609528602f5b72f4ea45b418c0dc1c97f15c86c3ffcrc32: 4D2AA204md5: 1422acec6f7013ef7ebba76f89d8c280sha1: 0724a84f54bf7f53e17be6ab526e5da3ae91116csha256: 47fe06172812619381de4c609528602f5b72f4ea45b418c0dc1c97f15c86c3ffsha512: ae5f263e1bc38341c951099bff58dee89f80d900179ecaf069abdebe486d80b8e9c64a2fdd999078cfc29e8c04a47421731a08905f36d16cf8564b5c6c18bd9dssdeep: 3072:rQEYO7VrGr5un1HERSz/N7P47lPn8N1sV8sc9oaU4:rQ5O74Nun1kRIPA0ousg3U4type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1E104026F7ED2E166DDE086F00E54A205FAF357098BA402CBAB545AC8EC431D3DF351A9sha3_384: 45d0a2edc17f3a7f7fd872ca27f9a8610a6bbd4f0d1e3ae1f2c6546fc933bf390b400642a587c23bbabc5ebddc126422ep_bytes: 68d400000068002e2e006808994000e8timestamp: 2012-11-14 21:57:53

Version Info:

0: [No Data]

Win32/Injector.ZEJ also known as:

Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Encpk.Gen.1
FireEye Generic.mg.1422acec6f7013ef
CAT-QuickHeal VirTool.CeeInject.A
ALYac Trojan.Encpk.Gen.1
Cylance Unsafe
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan ( 0040f2521 )
BitDefender Trojan.Encpk.Gen.1
K7GW Trojan ( 0040f2521 )
Cybereason malicious.c6f701
BitDefenderTheta Gen:NN.ZexaF.34742.luZ@aGckEJd
Cyren W32/Trojan.HRI.gen!Eldorado
ESET-NOD32 a variant of Win32/Injector.ZEJ
APEX Malicious
ClamAV Win.Trojan.Zbot-60023
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Tepfer.bbuqop
ViRobot Trojan.Win32.A.Zbot.181607.A
Rising Trojan.Generic@AI.95 (RDML:nnxH9Al16p1m8PeNXXVY5g)
Ad-Aware Trojan.Encpk.Gen.1
Sophos ML/PE-A + Troj/Zbot-DAC
DrWeb Trojan.Click2.42023
Zillya Trojan.Zbot.Win32.85923
TrendMicro TROJ_LOCKSCRN.SM
McAfee-GW-Edition BehavesLike.Win32.ZBot.cc
Emsisoft Trojan.Encpk.Gen.1 (B)
Ikarus Trojan.Win32.Inject
Jiangmin TrojanSpy.Zbot.ckwo
Avira TR/Spy.Zbot.ajoumea
MAX malware (ai score=83)
Microsoft VirTool:Win32/CeeInject.gen!ID
SUPERAntiSpyware Trojan.Agent/Gen-Zbot
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Encpk.Gen.1
Cynet Malicious (score: 100)
AhnLab-V3 Spyware/Win32.Zbot.R43349
McAfee PWS-Zbot.gen.anm
TACHYON Trojan-Spy/W32.ZBot.181607.B
VBA32 BScope.Trojan.Click
Malwarebytes Trojan.Crypt.NKN
Panda Generic Suspicious
TrendMicro-HouseCall TROJ_LOCKSCRN.SM
Tencent Malware.Win32.Gencirc.10b0e2f9
SentinelOne Static AI – Suspicious PE
Fortinet W32/Injector.ZAC!tr
AVG Win32:Crypt-OLG [Trj]
Avast Win32:Crypt-OLG [Trj]
CrowdStrike win/malicious_confidence_100% (W)

How to remove Win32/Injector.ZEJ?

  • 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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