Trojan:Win32/Koutodoor.B

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Trojan:Win32/Koutodoor.B infection?

In this post you will certainly locate regarding the definition of Trojan:Win32/Koutodoor.B as well as its adverse influence on your computer. Such ransomware are a form of malware that is specified by on the internet frauds to demand paying the ransom money by a sufferer.

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Most of the cases, Trojan:Win32/Koutodoor.B infection will instruct its targets to initiate funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the target’s device.

Trojan:Win32/Koutodoor.B Summary

These adjustments can be as complies with:

  • Loads a driver;
  • The binary likely contains encrypted or compressed data.;
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • Attempts to repeatedly call a single API many times in order to delay analysis time;
  • Installs itself for autorun at Windows startup;
  • Ciphering the files located on the victim’s disk drive — so the target can no longer use the information;
  • Preventing routine access to the target’s workstation;

Related domains:

z.whorecord.xyzBehavesLike.Win32.VirRansom.mc
a.tomx.xyzBehavesLike.Win32.VirRansom.mc

Trojan:Win32/Koutodoor.B

The most normal networks whereby Trojan:Win32/Koutodoor.B Ransomware Trojans are injected are:

  • By means of phishing emails;
  • As an effect of individual winding up on a source that hosts a harmful software application;

As quickly as the Trojan is efficiently infused, it will either cipher the data on the target’s computer or protect against the device from functioning in a correct fashion – while likewise positioning a ransom note that mentions the requirement for the victims to effect the settlement for the function of decrypting the records or restoring the documents system back to the preliminary condition. In most instances, the ransom note will turn up when the client restarts the PC after the system has actually currently been damaged.

Trojan:Win32/Koutodoor.B distribution channels.

In various corners of the world, Trojan:Win32/Koutodoor.B expands by leaps as well as bounds. However, the ransom money notes and also methods of extorting the ransom amount may differ depending upon particular regional (local) setups. The ransom notes as well as techniques of extorting the ransom amount may vary depending on certain regional (regional) setups.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software program.

    In particular areas, the Trojans often wrongfully report having actually identified some unlicensed applications enabled on the target’s gadget. The sharp then demands the customer to pay the ransom.

    Faulty declarations about illegal content.

    In countries where software program piracy is less preferred, this technique is not as reliable for the cyber scams. Additionally, the Trojan:Win32/Koutodoor.B popup alert might wrongly assert to be deriving from a police organization and will report having located youngster pornography or other prohibited information on the device.

    Trojan:Win32/Koutodoor.B popup alert may incorrectly assert to be acquiring from a law enforcement establishment and also will report having situated kid pornography or other illegal information on the tool. The alert will in a similar way contain a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 60601669
md5: f2c09d8c68eb78555d8d97d38d7e3ab2
name: F2C09D8C68EB78555D8D97D38D7E3AB2.mlw
sha1: 4bca21c3254b6c1f1e6b196fadf59b860fb170c5
sha256: 36f2977ff11929ac2805a3009a7642a9bc2cb8bc7d089a9a24ba799444943171
sha512: 2145d6e87874fc7f60edc5456f7335d37d73bc07ab5cecfce5f2e2c461ba244d645375320fe963021c9d23a25bc7b46f11d4b2c277be1a7737a89a1b96f1225a
ssdeep: 1536:/B2XkZoK4w7e7Aq2xBsr5I75Aj7MHXNXXflJY04UhfPro65s:J20ZoK4w7e7Aq2xBsr675Aj7MH19JZD
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Koutodoor.B also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 004cc2481 )
LionicTrojan.Multi.Generic.4!c
Elasticmalicious (high confidence)
DrWebTrojan.Siggen6.62927
CynetMalicious (score: 100)
ALYacGen:Heur.Krypt.6
CylanceUnsafe
ZillyaTrojan.Koutodoor.Win32.35870
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:Win32/Koutodoor.7a5e0dd9
K7GWTrojan ( 004cc2481 )
Cybereasonmalicious.c68eb7
BaiduWin32.Rootkit.Koutodoor.a
CyrenW32/Koutodoor.A.gen!Eldorado
SymantecTrojan Horse
ESET-NOD32a variant of Win32/Koutodoor.BV
APEXMalicious
AvastWin32:RtkDL [Rtk]
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Heur.Krypt.6
NANO-AntivirusTrojan.Win32.MlwGen.edlowt
MicroWorld-eScanGen:Heur.Krypt.6
TencentWin32.Trojan.Obfuscator.Ednc
Ad-AwareGen:Heur.Krypt.6
SophosMal/Kouto-D
ComodoTrojWare.Win32.Zybr.D@1h4wlc
BitDefenderThetaGen:NN.ZexaF.34088.fmW@amvaRsl
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_KTODOOR.SMF
McAfee-GW-EditionBehavesLike.Win32.VirRansom.mc
FireEyeGeneric.mg.f2c09d8c68eb7855
EmsisoftGen:Heur.Krypt.6 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan/JunkCode.Gen
AviraTR/Crypt.ZPACK.Gen
eGambitGeneric.Dropper
Antiy-AVLTrojan/Generic.ASMalwS.19068B0
MicrosoftTrojan:Win32/Koutodoor.B
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGen:Heur.Krypt.6
AhnLab-V3Trojan/Win32.Hmir.R2706
Acronissuspicious
McAfeegeneric!bg.ftt
MAXmalware (ai score=100)
VBA32BScope.TrojanDropper.Koutodoor
PandaTrj/Genetic.gen
TrendMicro-HouseCallTROJ_KTODOOR.SMF
RisingTrojan.Generic@ML.94 (RDML:IGIvCPSj4PzvrcT0eSp8LQ)
YandexTrojan.GenAsa!HHKeANDDkcI
IkarusTrojan-Dropper.Win32.Koutodoor
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Koutodoor.PAK!tr
AVGWin32:RtkDL [Rtk]
Paloaltogeneric.ml

How to remove Trojan:Win32/Koutodoor.B ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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 Trojan:Win32/Koutodoor.B 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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If the guide doesn’t help you to remove Trojan:Win32/Koutodoor.B 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: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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