Mal/Koutodoor-A

Written by Robert Bailey

What is Mal/Koutodoor-A infection?

In this post you will discover concerning the meaning of Mal/Koutodoor-A and also its adverse effect on your computer system. Such ransomware are a type of malware that is elaborated by on the internet frauds to require paying the ransom by a target.

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Most of the situations, Mal/Koutodoor-A infection will certainly advise its sufferers to launch funds transfer for the function of counteracting the modifications that the Trojan infection has actually presented to the victim’s tool.

Mal/Koutodoor-A Summary

These adjustments can be as follows:

  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Ciphering the files situated on the victim’s hard drive — so the victim can no more utilize the data;
  • Preventing regular access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
z.whorecord.xyz Trojan.Ransom.Cerber.1
a.tomx.xyz Trojan.Ransom.Cerber.1

Mal/Koutodoor-A

The most normal networks whereby Mal/Koutodoor-A Ransomware are injected are:

  • By means of phishing emails;
  • As a consequence of individual winding up on a source that hosts a malicious software program;

As soon as the Trojan is successfully infused, it will either cipher the data on the target’s PC or avoid the gadget from functioning in an appropriate manner – while additionally putting a ransom note that states the demand for the victims to effect the settlement for the objective of decrypting the papers or bring back the documents system back to the preliminary problem. In many instances, the ransom money note will certainly turn up when the customer reboots the PC after the system has currently been damaged.

Mal/Koutodoor-A circulation channels.

In numerous edges of the globe, Mal/Koutodoor-A expands by jumps and bounds. Nonetheless, the ransom money notes as well as methods of extorting the ransom money quantity might differ depending upon certain local (regional) setups. The ransom money notes and also methods of obtaining the ransom amount may differ depending on specific neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty signals about unlicensed software.

    In particular locations, the Trojans frequently wrongfully report having actually identified some unlicensed applications made it possible for on the victim’s device. The sharp after that demands the customer to pay the ransom money.

    Faulty declarations concerning illegal content.

    In nations where software piracy is less prominent, this approach is not as reliable for the cyber scams. Conversely, the Mal/Koutodoor-A popup alert might incorrectly claim to be stemming from a police institution and also will report having located youngster pornography or various other prohibited information on the gadget.

    Mal/Koutodoor-A popup alert might wrongly declare to be obtaining from a regulation enforcement institution and also will report having situated youngster pornography or other illegal data on the device. The alert will in a similar way include a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 8A395E58
md5: 1a0045f5c489653e79b78c49a00ea9fa
name: 1A0045F5C489653E79B78C49A00EA9FA.mlw
sha1: d422e44f723fea4009c87ef5c7191e02a9d26286
sha256: a2e5f077dd6f033c055fee77e6184e8d144acb4dc28b77b603d5093e25a2e272
sha512: 20aa8578d1395c0211c04895467f8cc12fab98b0fe0e552b0895fe9fe569a8d1d5b81b1a9bd55d2b1549a4c619b97f45f9403c4564849ffabde18e06cfb1c803
ssdeep: 3072:/0aUd8IndU24J5MrsxDaJTc9wPcIGWko8C+:s5d8H7Oc0cIG7z9
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright 2010
ProductVersion: 1, 0, 0, 0
FileDescription:
FileVersion: 1, 0, 0, 0
CompanyName:
Translation: 0x0804 0x04b0

Mal/Koutodoor-A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0002762d1 )
Elastic malicious (high confidence)
DrWeb BackDoor.Siggen.32444
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Cerber.1
Cylance Unsafe
Zillya Backdoor.Koutodoor.Win32.3355
Sangfor Ransom.Win32.Cerber_9.se
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Koutodoor.d98988f3
K7GW Trojan ( 0002762d1 )
Cybereason malicious.5c4896
Baidu Win32.Rootkit.Koutodoor.a
Cyren W32/Koutodoor.A.gen!Eldorado
Symantec Trojan.Koutodoor!gen
ESET-NOD32 a variant of Win32/Koutodoor.HL
APEX Malicious
Avast Win32:Caxnet [Trj]
ClamAV Win.Trojan.Koutodoor-8645
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.Cerber.1
NANO-Antivirus Trojan.Win32.Koutodoor.dkubm
ViRobot Backdoor.Win32.Koutodoor.Gen.B
SUPERAntiSpyware Trojan.Agent/Gen-Koutodoor
MicroWorld-eScan Trojan.Ransom.Cerber.1
Tencent Trojan.Win32.WNDABC.a
Ad-Aware Trojan.Ransom.Cerber.1
Sophos Mal/Koutodoor-A
Comodo TrojWare.Win32.Zybr.A@1gtnwn
BitDefenderTheta AI:Packer.28A86CDB21
VIPRE Trojan.Win32.Koutodoor.e (v)
TrendMicro TROJ_KTODOOR.SMF
McAfee-GW-Edition BehavesLike.Win32.PWSZbot.cc
FireEye Generic.mg.1a0045f5c489653e
Emsisoft Trojan.Ransom.Cerber.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/JunkCode.Gen
Webroot Trojan:Win32/Koutodoor.E
Avira TR/Dropper.Gen
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.49FBB1
Microsoft Trojan:Win32/Koutodoor.E
AegisLab Trojan.Win32.Generic.l7iX
GData Win32.Trojan.PSE.15Y6OF0
TACHYON Backdoor/W32.Koutodoor.131328.V
AhnLab-V3 Win-Trojan/Koutodoor12.Gen
Acronis suspicious
McAfee Koutodoor.gen.g
MAX malware (ai score=100)
VBA32 Backdoor.Koutodoor
Panda Bck/Koutodoor.E
TrendMicro-HouseCall TROJ_KTODOOR.SMF
Rising Trojan.Fedwj!1.98EA (CLOUD)
Yandex Trojan.GenAsa!HwGm/pypIn8
Ikarus Trojan.Win32.Koutodoor
MaxSecure Trojan.Malware.2421172.susgen
Fortinet W32/Koutodoor.D!tr.bdr
AVG Win32:Caxnet [Trj]
Paloalto generic.ml

How to remove Mal/Koutodoor-A ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Mal/Koutodoor-A files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Mal/Koutodoor-A you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: http://gridinsoft.com/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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