Categories: Trojan

Should I remove “AIT:Trojan.Nymeria.3875 (B)”?

The AIT:Trojan.Nymeria.3875 (B) 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.3875 (B) virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Presents an Authenticode digital signature
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • 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)
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • CAPE detected the Remcos malware family
  • Creates known Remcos mutexes
  • Anomalous binary characteristics

How to determine AIT:Trojan.Nymeria.3875 (B)?


File Info:

name: 58E3333584FE1B7FFB34.mlwpath: /opt/CAPEv2/storage/binaries/9c9985a5df15c729f7dbe9190a98b0220747af73f0f2ba303af9181b52fdb97ecrc32: 2A22E18Bmd5: 58e3333584fe1b7ffb34b894c047e3f8sha1: b0ac75234f48badbd33a792a75dc553f329ff34csha256: 9c9985a5df15c729f7dbe9190a98b0220747af73f0f2ba303af9181b52fdb97esha512: 416a2ed5639eda0928af31b4046ec5fc65556188ea44eea93a92f2a3aaa72c7f4aee82ed163602d27703bf6eb121671dc9463b23ffce2807f50d8015f3c35bfbssdeep: 12288:eCdOy3vVrKxR5CXbNjAOxK/j2n+4YG/6c1mFFja3mXgcjfRlgsUBgaRTy1wC8owG:eCdxte/80jYLT3U1jfsWalB1R5hZ14QGtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T19035BE5263DDC3A1CB666273FE2977422F7B38314A30B85B2F981C6CAD61171122DB63sha3_384: 8322115b5d91eb12927972737bc00a288f62691c7160983dd0ed3818d64ca49ce92a673703e7e40abe8f5a94f8602fdaep_bytes: e8b8d00000e97ffeffffcccccccccccctimestamp: 2019-04-08 12:47:30

Version Info:

FileDescription: NVIDIA driver profile updaterOriginalFilename: NvProfileUpdater.exeCompanyName: NVIDIA CorporationFileVersion: 36.19.010.0LegalCopyright: (C) 2018 NVIDIA Corporation. All rights reserved.ProductName: NVIDIA driver profile updaterProductVersion: 36.19.010.0Translation: 0x0409 0x04b0

AIT:Trojan.Nymeria.3875 (B) also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader27.45465
MicroWorld-eScan AIT:Trojan.Nymeria.3875
FireEye Generic.mg.58e3333584fe1b7f
McAfee AutoIt/Injector.y
K7AntiVirus Trojan ( 700000111 )
K7GW Trojan ( 700000111 )
CrowdStrike win/malicious_confidence_100% (D)
BitDefenderTheta AI:Packer.EF0DFF6317
Cyren W32/AutoIt.QG.gen!Eldorado
Symantec AUT.Heuristic!gen5
ESET-NOD32 a variant of Win32/Packed.AutoIt.OU
TrendMicro-HouseCall Trojan.AutoIt.CRYPTINJECT.SMA
ClamAV Win.Malware.Autoit-6936619-0
Kaspersky HEUR:Trojan.Script.Generic
BitDefender AIT:Trojan.Nymeria.3875
NANO-Antivirus Trojan.Script.Nanocore.fpbxft
Avast AutoIt:Injector-JF [Trj]
Tencent Malware.Win32.Gencirc.10b4e9ea
Ad-Aware AIT:Trojan.Nymeria.3875
Sophos ML/PE-A + Mal/AuItInj-A
VIPRE Trojan.Win32.Generic!BT
TrendMicro Trojan.AutoIt.CRYPTINJECT.SMA
McAfee-GW-Edition BehavesLike.Win32.TrojanAitInject.th
Emsisoft AIT:Trojan.Nymeria.3875 (B)
Ikarus Trojan.Autoit
GData AIT:Trojan.Nymeria.3875 (2x)
Jiangmin Backdoor.Remcos.adr
Avira HEUR/AGEN.1140402
MAX malware (ai score=81)
Antiy-AVL Trojan/Generic.ASCommon.151
Microsoft Trojan:Win32/Sabsik.FL.B!ml
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/AutoInj.Exp
VBA32 Trojan.Downloader
ALYac AIT:Trojan.Nymeria.3875
Malwarebytes Backdoor.Remcos
APEX Malicious
Rising Trojan.Injector/Autoit!1.BB8F (CLASSIC)
Fortinet AutoIt/Injector.DWD!tr
AVG AutoIt:Injector-JF [Trj]
Cybereason malicious.584fe1

How to remove AIT:Trojan.Nymeria.3875 (B)?

  • 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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