Categories: Worm

What is “Worm:Win32/Ructo.J”?

The Worm:Win32/Ructo.J 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 Worm:Win32/Ructo.J virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • Attempts to connect to a dead IP:Port (13 unique times)
  • Reads data out of its own binary image
  • A process created a hidden window
  • Performs some HTTP requests
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Uses Windows utilities for basic functionality
  • Executed a process and injected code into it, probably while unpacking
  • Creates a hidden or system file
  • Attempts to modify proxy settings

Related domains:

z.whorecord.xyz
a.tomx.xyz
www.youtube.com
www.bing.com
ocsp.pki.goog
i.ytimg.com
fonts.googleapis.com
fonts.gstatic.com
r2—sn-4g5ednsd.googlevideo.com
ssl.gstatic.com

How to determine Worm:Win32/Ructo.J?


File Info:

crc32: 7F670A3Amd5: 1d335a7d055b7dffc2baeac265f072d6name: 1D335A7D055B7DFFC2BAEAC265F072D6.mlwsha1: ab871b9769dacecf0fb4887eb706d97a551a3f9esha256: d107a1093a0a0d214a9af08e9e4f35708b17aaeb7b2d8dca85fa9f965239c580sha512: 7c4bcc527cb1a8d04da324ac5e2f21b0ac8e2576d7c82054874b4733957b5af2bda60495c1e931d3c2f8b1190336679bb6386b69508484ae8a6532df0bd00228ssdeep: 6144:sAFELV9WkhHnkpPlxhPG+hxHLjdw/4NzNXn85R7Iuyuy8wFto3MIqzEQB7x026V:sA6bf5Ud3rjdJzxVuy8WoyzEQBiKtype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

CompiledScript: AutoIt v3 Script: 3, 3, 8, 1FileVersion: 3, 3, 8, 1FileDescription: Translation: 0x0809 0x04b0

Worm:Win32/Ructo.J also known as:

Bkav W32.AIDetectVM.malware1
MicroWorld-eScan Trojan.Autoit.AVI
FireEye Generic.mg.1d335a7d055b7dff
ALYac Trojan.Autoit.AVI
Cylance Unsafe
VIPRE Trojan.Win32.Generic.pak!cobra
Sangfor Malware
K7AntiVirus Trojan ( 700000111 )
BitDefender Trojan.Autoit.AVI
K7GW Trojan ( 700000111 )
Cybereason malicious.d055b7
Cyren W32/Backdoor.DFKL-4005
Symantec Trojan.Gen.MBT
TotalDefense Win32/Ructo.BS
APEX Malicious
Avast AutoIt:Crypt-A [Drp]
ClamAV Win.Malware.Generic-6664531-0
Kaspersky Trojan-Dropper.Win32.Injector.firi
Alibaba Worm:Win32/Ructo.5cebddbb
NANO-Antivirus Trojan.Win32.Inject.ujeui
Ad-Aware Trojan.Autoit.AVI
Emsisoft Trojan.Autoit.AVI (B)
Comodo Malware@#16ob41se55sb7
F-Secure Trojan.TR/Dropper.Gen
DrWeb Trojan.FakeAV.11093
Zillya Worm.AutoItGen.Win32.45
TrendMicro TROJ_GEN.R002C0CLL20
McAfee-GW-Edition BehavesLike.Win32.Spyware.gc
Sophos Troj/Autoit-QC
Ikarus Trojan-Dropper.Win32.Injector
Webroot W32.Trojan.Dropper
Avira TR/Dropper.Gen
MAX malware (ai score=100)
Kingsoft Win32.Troj.Injector.(kcloud)
Microsoft Worm:Win32/Ructo.J
Arcabit Trojan.Autoit.AVI
ZoneAlarm Trojan-Dropper.Win32.Injector.firi
GData Trojan.Autoit.AVI
Cynet Malicious (score: 100)
McAfee Generic.dx!1D335A7D055B
Malwarebytes Malware.Heuristic.1003
Panda Trj/Injector.AV
ESET-NOD32 multiple detections
TrendMicro-HouseCall TROJ_GEN.R002C0CLL20
Tencent Win32.Trojan-Dropper.Injector.lbn
SentinelOne Static AI – Suspicious PE
eGambit Unsafe.AI_Score_93%
Fortinet W32/Injector.FIRI!tr
BitDefenderTheta AI:Packer.4ED90C6E19
AVG AutoIt:Crypt-A [Drp]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_80% (W)
Qihoo-360 HEUR/Malware.QVM11.Gen

How to remove Worm:Win32/Ructo.J?

  • 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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