Categories: Trojan

Should I remove “Trojan.Agent.ECJJ”?

The Trojan.Agent.ECJJ 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.Agent.ECJJ virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Creates RWX memory
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • Attempts to mimic the file extension of a Word 97-2003 document by having ‘doc’ in the file name.
  • The binary likely contains encrypted or compressed data.
  • 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
  • Creates a slightly modified copy of itself
  • Anomalous binary characteristics

How to determine Trojan.Agent.ECJJ?


File Info:

crc32: BFAAB6C4md5: 50742dc58379259bb1b7f78b4d0e677dname: cpmpany.doc.exesha1: 058bd88241dc3189896e8135b9de00d6cedb93b4sha256: c1058ea72dfd62ff9d7a95f2849adfd4dd74ac8b851f57cd0974afa5e93d6914sha512: 148530c7fa2df26c22cf26dd0e5389b4fa985db15d2659e2daa59cbbb3e06cf33046c815085d9473c2a62d20326c49aa9a25c9b59e04ec97dd155519dd1e4888ssdeep: 24576:JAHnh+eWsN3skA4RV1Hom2KXMmHaPNTxrToQ5:Qh+ZkldoPK8YaP/vtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

Trojan.Agent.ECJJ also known as:

MicroWorld-eScan Trojan.Agent.ECJJ
ALYac Trojan.Agent.ECJJ
Malwarebytes Trojan.MalPack.AutoIt
K7AntiVirus Trojan ( 0001140e1 )
BitDefender Trojan.Agent.ECJJ
K7GW Trojan ( 0001140e1 )
TrendMicro TROJ_GEN.R004C0DHO19
Cyren W32/Autoit.G.gen!Eldorado
Symantec Trojan.Gen.MBT
APEX Malicious
Avast Win32:Trojan-gen
GData Trojan.Agent.ECJJ (2x)
Kaspersky HEUR:Trojan.Script.Generic
Alibaba Trojan:Win32/Autoit.98bc2f11
ViRobot Trojan.Win32.Z.Autoit.1058304
AegisLab Trojan.Script.Generic.4!c
Tencent Win32.Trojan.Generic.Stke
Ad-Aware Trojan.Agent.ECJJ
Sophos Mal/Generic-S
F-Secure Trojan.TR/Autoit.cgbbn
DrWeb Trojan.AutoIt.565
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Downloader.th
FireEye Generic.mg.50742dc58379259b
Emsisoft Trojan.Agent.ECJJ (B)
F-Prot W32/Autoit.G.gen!Eldorado
Avira TR/Autoit.cgbbn
Endgame malicious (high confidence)
Arcabit Trojan.Agent.ECJJ
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft TrojanSpy:Win32/AveMaria.BM
AhnLab-V3 Trojan/Win32.RL_AutoInj.R272810
Acronis suspicious
McAfee Artemis!50742DC58379
MAX malware (ai score=82)
Cylance Unsafe
Panda Trj/CI.A
ESET-NOD32 a variant of Win32/Injector.Autoit.EFT
TrendMicro-HouseCall TROJ_GEN.R004C0DHO19
Rising Trojan.Obfus/Autoit!1.BB81 (CLASSIC)
Ikarus Trojan.Autoit
Fortinet AutoIt/Injector.EFR!tr
AVG Win32:Trojan-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_80% (W)
Qihoo-360 Win32/Trojan.Script.ed4

How to remove Trojan.Agent.ECJJ?

  • 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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