Categories: Trojan

Trojan:MSIL/CryptInject!rfn (file analysis)

The Trojan:MSIL/CryptInject!rfn 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 Trojan:MSIL/CryptInject!rfn virus can do?

  • Creates RWX memory
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • Network activity detected but not expressed in API logs
  • Anomalous binary characteristics

How to determine Trojan:MSIL/CryptInject!rfn?


File Info:

crc32: 8E32D90Bmd5: 5936bd4af1f1d0ca5b4311b0f9986874name: onetap.exesha1: 20cadce13e7757e2b39fce125a4efcd8d3d378d0sha256: 3f133e0adb25a0d7ef4864d84e36c259ffe7f6ef5e9cf3f76f7a780cdf17278fsha512: 2a5ebb6590c5e5f615a3aef8feb98521e1ebcc69615c0231cf6a56a7aae32c136641633cc8dbe5d4cdf86490f3771f887b687a315168315351a20360d2a26b8cssdeep: 6144:uMfWD1qShT6JGyqW5qUv7HkThZBDt3JKLG3lX/hz07fmaI1SR4288fKhicG8X:nWw/JPqWgUv4TBDzKq5Aqh1SRX88fQlXtype: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

LegalCopyright: FileVersion: 7.0.0.0FileDescription: descriptionTranslation: 0x0409 0x0000

Trojan:MSIL/CryptInject!rfn also known as:

DrWeb Trojan.PWS.Siggen2.30713
MicroWorld-eScan Trojan.GenericKD.42097876
FireEye Generic.mg.5936bd4af1f1d0ca
CAT-QuickHeal Trojan.MsilFC.S8706865
ALYac Trojan.GenericKD.42097876
Cylance Unsafe
Sangfor Malware
K7AntiVirus Trojan ( 0051ed981 )
BitDefender Trojan.GenericKD.42097876
K7GW Trojan ( 0051ed981 )
Cybereason malicious.af1f1d
TrendMicro TROJ_GEN.R007C0DC420
BitDefenderTheta Gen:NN.ZemsilF.34104.wm2@aWSKSdk
Cyren W32/Trojan.NRGS-3248
Symantec Trojan.Dropper
APEX Malicious
Paloalto generic.ml
GData Trojan.GenericKD.42097876
Kaspersky HEUR:Trojan-PSW.MSIL.Azorult.gen
Alibaba TrojanPSW:Win32/Skeeyah.9c7f61b9
NANO-Antivirus Trojan.Win32.Azorult.fzivjl
AegisLab Trojan.MSIL.Azorult.i!c
Tencent Msil.Trojan-qqpass.Qqrob.Svhm
Ad-Aware Trojan.GenericKD.42097876
Sophos Mal/Generic-S
Comodo Malware@#1g58lwib2pmzu
F-Secure Trojan.TR/Dropper.Gen2
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
Trapmine suspicious.low.ml.score
Emsisoft Trojan.GenericKD.42097876 (B)
SentinelOne DFI – Suspicious PE
MaxSecure Trojan.Malware.73815250.susgen
Avira HEUR/AGEN.1042450
Endgame malicious (high confidence)
Arcabit Trojan.Generic.D2825CD4
SUPERAntiSpyware Backdoor.Bot/Variant
ZoneAlarm HEUR:Trojan-Downloader.Win32.Agent.gen
Microsoft Trojan:MSIL/CryptInject!rfn
Acronis suspicious
McAfee Artemis!5936BD4AF1F1
MAX malware (ai score=83)
Malwarebytes Spyware.PredatorTheThief
ESET-NOD32 NSIS/TrojanDropper.Agent.CQ
TrendMicro-HouseCall TROJ_GEN.R007C0DC420
Yandex Trojan.Kryptik!L3gfDYWieeI
Ikarus Trojan.MSIL.Crypt
eGambit Unsafe.AI_Score_56%
Fortinet W32/Agent.CQ!tr
Webroot W32.Trojan.Gen
AVG Win32:Malware-gen
Avast Win32:Malware-gen
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Trojan.PSW.a72

How to remove Trojan:MSIL/CryptInject!rfn?

  • 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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