Categories: Trojan

Trojan.AutInject removal tips

The Trojan.AutInject 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.AutInject virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Reads data out of its own binary image
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Attempts to remove evidence of file being downloaded from the Internet
  • Behavioural detection: Injection (inter-process)
  • Behavioural detection: Injection with CreateRemoteThread in a remote process
  • Installs itself for autorun at Windows startup
  • Exhibits behavior characteristic of Nanocore RAT
  • Attempts to bypass application whitelisting by copying and persisting .NET utility
  • Attempts to bypass application whitelisting by executing .NET utility in a suspended state, potentially for injection
  • CAPE detected the NanoCore malware family
  • Collects information to fingerprint the system
  • Anomalous binary characteristics

How to determine Trojan.AutInject?


File Info:

name: 3AC1832DFBE8512F4EE2.mlwpath: /opt/CAPEv2/storage/binaries/04df489dcd5fcf1fcd8abfca45e31ed40bafcdea06606402d882793d1a287d8acrc32: F196CC8Emd5: 3ac1832dfbe8512f4ee2bbf9ea10519fsha1: 2dc6a41a228eaeeb6f989ea1732a4030ee9c199esha256: 04df489dcd5fcf1fcd8abfca45e31ed40bafcdea06606402d882793d1a287d8asha512: e5c9d2fc9a4af0bbb166fde32dd6ffd8ff5cc08d619e1216df1f290edfcaba8e3e3354e5d96411274e3033a663ddef407fd2545b60fbad96ef8bf904ae76d201ssdeep: 24576:XAHnh+eWsN3skA4RV1Hom2KXMmHatoI3fr6j2/2+n/a557:Kh+ZkldoPK8YatoMYdtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1F555BF42B395C0B2FE57A2B39F15B6865B7C69350133802F23982DA9BD725B1423DB73sha3_384: 1c86d8264f870cdecd0cd072dfc4288a290bc3ad6851a4094a7cf33733872d94914a733d00e3d62e17bca4c2d2991ae8ep_bytes: e8c8d00000e97ffeffffcccccccccccctimestamp: 2019-04-15 12:59:00

Version Info:

Translation: 0x0809 0x04b0

Trojan.AutInject also known as:

Bkav W32.AIDetect.malware1
tehtris Generic.Malware
MicroWorld-eScan Trojan.GenericKD.31889147
FireEye Generic.mg.3ac1832dfbe8512f
CAT-QuickHeal Trojan.AutInject
McAfee Artemis!3AC1832DFBE8
Cylance Unsafe
VIPRE Trojan.GenericKD.31889147
Sangfor Virus.Win32.Save.a
K7AntiVirus Riskware ( 0040eff71 )
K7GW Riskware ( 0040eff71 )
Cybereason malicious.dfbe85
BitDefenderTheta AI:Packer.7D51B81017
VirIT Trojan.Win32.Dnldr27.DFZW
Cyren W32/Autoit.G.gen!Eldorado
Symantec AUT.Heuristic!gen5
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Injector.Autoit.DUY
APEX Malicious
ClamAV Win.Trojan.Nanocore-9934602-1
Kaspersky HEUR:Trojan.Script.Generic
BitDefender Trojan.GenericKD.31889147
NANO-Antivirus Trojan.Script.Agent.jmqtpm
Avast AutoIt:Injector-JF [Trj]
Tencent Trojan.Win32.AutoIt.hc
Ad-Aware Trojan.GenericKD.31889147
Emsisoft Trojan.GenericKD.31889147 (B)
DrWeb Trojan.AutoIt.385
TrendMicro Trojan.AutoIt.CRYPTINJECT.SMA
McAfee-GW-Edition BehavesLike.Win32.TrojanAitInject.th
Sophos ML/PE-A + Mal/AuItInj-A
GData Trojan.GenericKD.31889147
Avira DR/AutoIt.Gen8
Microsoft Trojan:Win32/Wacatac.B!ml
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/AutoInj.Exp
Acronis suspicious
VBA32 Backdoor.MSIL.NanoBot
ALYac Trojan.GenericKD.31889147
MAX malware (ai score=85)
Malwarebytes Backdoor.NanoCore.AutoIt
TrendMicro-HouseCall Trojan.AutoIt.CRYPTINJECT.SMA
Rising Trojan.Injector/Autoit!1.BB8F (CLASSIC)
Ikarus Trojan-Spy.FormBook
MaxSecure Trojan.Malware.300983.susgen
Fortinet AutoIt/Injector.DWD!tr
AVG AutoIt:Injector-JF [Trj]
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_100% (W)

How to remove Trojan.AutInject?

  • 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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