Categories: Trojan

About “AIT:Trojan.Nymeria.81” infection

The AIT:Trojan.Nymeria.81 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 AIT:Trojan.Nymeria.81 virus can do?

  • Attempts to connect to a dead IP:Port (1 unique times)
  • Creates RWX memory
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • Uses Windows utilities for basic functionality
  • Sniffs keystrokes
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Installs itself for autorun at Windows startup
  • Attempts to disable UAC
  • Attempts to modify UAC prompt behavior
  • Anomalous binary characteristics

How to determine AIT:Trojan.Nymeria.81?


File Info:

crc32: 0AACAF4Fmd5: b131cc3b5322807102f1c942d6d9f3f6name: B131CC3B5322807102F1C942D6D9F3F6.mlwsha1: fba13a86d6fdaf98a9276374d9f0f1ed2c91e61asha256: c3e6c301b8372bb630580858bfbe470ab9cdacd5a22c95a18285b328c8162257sha512: 0ca0fdc10ae51e6f9e85d1cb9bacaa9a7116b62676c3e85a08437aba17d7e3fcc8dd0c4044e56896d48593d51e012c06c69a3e0f2e9e54349cc0d1018d3bfc2cssdeep: 24576:LXdSGJ2Eq2bqTWioAM/jAEneauJ09q9MmCS:h55bqxoAMZeauJgaPCStype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

AIT:Trojan.Nymeria.81 also known as:

Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan AIT:Trojan.Nymeria.81
FireEye Generic.mg.b131cc3b53228071
CAT-QuickHeal TrojanPWS.AutoIt.Zbot.S
McAfee Artemis!B131CC3B5322
Cylance Unsafe
Sangfor Malware
BitDefender AIT:Trojan.Nymeria.81
Cybereason malicious.b53228
BitDefenderTheta AI:Packer.4A7CAE7C15
Cyren W32/AutoIt.EZ.gen!Eldorado
Symantec Backdoor.Ratenjay
Baidu Win32.Trojan-Dropper.Autoit.c
APEX Malicious
ClamAV Win.Trojan.Autoit-9790251-0
Kaspersky Trojan-Dropper.Win32.Autoit.bpz
NANO-Antivirus Trojan.Script.AutoIt.dcckyk
Ad-Aware AIT:Trojan.Nymeria.81
Emsisoft AIT:Trojan.Nymeria.81 (B)
F-Secure Heuristic.HEUR/AGEN.1134155
DrWeb Trojan.DownLoader35.27056
Invincea Troj/Autoit-BIF
McAfee-GW-Edition BehavesLike.Win32.DownloaderAutoIt.ch
Sophos Troj/Autoit-BIF
Ikarus Trojan-Dropper.Win32.Autoit
MaxSecure Trojan.Malware.300983.susgen
Avira HEUR/AGEN.1134155
Microsoft Trojan:Win32/Wacatac.C!ml
Arcabit AIT:Trojan.Nymeria.81
AhnLab-V3 Dropper/RL.Autoit.R242657
ZoneAlarm Trojan-Dropper.Win32.Autoit.bpz
GData AIT:Trojan.Nymeria.81 (2x)
Cynet Malicious (score: 100)
ESET-NOD32 multiple detections
MAX malware (ai score=81)
Malwarebytes Backdoor.Bladabindi.AutoIt
eGambit Unsafe.AI_Score_85%
Fortinet W32/Autoit.AWL!tr
AVG AutoIt:Runner-AN [Trj]
Avast AutoIt:Runner-AN [Trj]
CrowdStrike win/malicious_confidence_90% (D)

How to remove AIT:Trojan.Nymeria.81?

  • 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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