Categories: Trojan

How to remove “Trojan-Dropper.Win32.Agentoit.b”?

The Trojan-Dropper.Win32.Agentoit.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 Trojan-Dropper.Win32.Agentoit.b virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Injection with CreateRemoteThread in a remote process
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Reads data out of its own binary image
  • Executed a process and injected code into it, probably while unpacking
  • Attempts to remove evidence of file being downloaded from the Internet
  • Installs itself for autorun at Windows startup
  • Exhibits behavior characteristic of Nanocore RAT
  • Collects information to fingerprint the system
  • Anomalous binary characteristics

How to determine Trojan-Dropper.Win32.Agentoit.b?


File Info:

crc32: 873F01EFmd5: c8bf764ec97290bb41d7bcd4c2f7b50dname: system.exesha1: fefd94e0e8c810ec789a5425b508d0678bbe7a00sha256: 3936f7ac9e7376fd157a339e9fdfefed06f29a5b9fc2ca92d6bedaf42f306adbsha512: 5e890d825eac7d4d0ca593ab28ef9a5ed54f00a7f815176b874d6a853ef91844b6207c3ee2ce5b463fc796bbebd531d95301fe5cfec0015519a94efd517d9853ssdeep: 24576:ku6Jx3O0c+JY5UZ+XC0kGso/WakNAASptmcsOOOFZWY:eI0c++OCvkGsUWapGYtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

Trojan-Dropper.Win32.Agentoit.b also known as:

DrWeb Trojan.DownLoader30.51233
MicroWorld-eScan Trojan.GenericKD.32880138
FireEye Generic.mg.c8bf764ec97290bb
ALYac Trojan.GenericKD.32880138
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan ( 0055d15b1 )
BitDefender Trojan.GenericKD.32880138
K7GW Trojan ( 0055d15b1 )
TrendMicro TROJ_GEN.R002C0TLA19
F-Prot W32/AutoIt.IK.gen!Eldorado
APEX Malicious
Avast Win32:Trojan-gen
GData Trojan.GenericKD.32880138
Kaspersky HEUR:Trojan-Dropper.Win32.Agentoit.b
Alibaba Trojan:Win32/Predator.e3d36635
NANO-Antivirus Trojan.Win32.Dwn.glajsz
AegisLab Trojan.Win32.Agentoit.b!c
Rising Trojan.Obfus/Autoit!1.C045 (CLASSIC)
Endgame malicious (high confidence)
Emsisoft Trojan.GenericKD.32880138 (B)
F-Secure Dropper.DR/AutoIt.Gen8
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Downloader.th
MaxSecure Trojan.Malware.74735604.susgen
Trapmine malicious.high.ml.score
Sophos Mal/AuItInj-A
Ikarus Trojan-Spy.Keylogger.AgentTesla
Cyren W32/AutoIt.IK.gen!Eldorado
Avira DR/AutoIt.Gen8
MAX malware (ai score=99)
Microsoft Trojan:Win32/Predator.BC!rfn
Arcabit Trojan.Generic.D1F5B60A
ZoneAlarm HEUR:Trojan-Dropper.Win32.Agentoit.b
AhnLab-V3 Win-Trojan/Autoinj05.Exp
Acronis suspicious
McAfee Artemis!C8BF764EC972
Malwarebytes Trojan.MalPack.AutoIt
Panda Trj/CI.A
ESET-NOD32 a variant of Win32/Packed.AutoIt.TT
TrendMicro-HouseCall TROJ_GEN.R002C0TLA19
Tencent Win32.Trojan.Generic.Tapb
Fortinet AutoIt/Injector.ESJ!tr
Ad-Aware Trojan.GenericKD.32880138
AVG Win32:Trojan-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_90% (W)
Qihoo-360 Win32/Trojan.Dropper.e9b

How to remove Trojan-Dropper.Win32.Agentoit.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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