Written by Robert Bailey

What is TrojanClicker:Win32/Costrat.B infection?

In this article you will find regarding the definition of TrojanClicker:Win32/Costrat.B as well as its adverse impact on your computer system. Such ransomware are a type of malware that is clarified by online scams to demand paying the ransom money by a victim.

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In the majority of the instances, TrojanClicker:Win32/Costrat.B ransomware will certainly advise its targets to launch funds move for the function of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s device.

TrojanClicker:Win32/Costrat.B Summary

These adjustments can be as follows:

  • The binary likely contains encrypted or compressed data.;
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the papers found on the target’s hard drive — so the victim can no longer use the data;
  • Preventing routine access to the victim’s workstation;

Related domains: BehavesLike.Win32.VirRansom.kc BehavesLike.Win32.VirRansom.kc


The most normal channels where TrojanClicker:Win32/Costrat.B Ransomware are injected are:

  • By methods of phishing e-mails;
  • As a consequence of user winding up on a source that organizes a harmful software;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the information on the victim’s PC or prevent the device from working in an appropriate manner – while likewise putting a ransom money note that points out the demand for the victims to effect the repayment for the objective of decrypting the records or restoring the data system back to the first condition. In the majority of instances, the ransom money note will certainly come up when the client reboots the PC after the system has actually currently been damaged.

TrojanClicker:Win32/Costrat.B distribution networks.

In different edges of the world, TrojanClicker:Win32/Costrat.B grows by jumps as well as bounds. However, the ransom money notes and also methods of extorting the ransom money amount might differ relying on particular neighborhood (regional) settings. The ransom money notes and tricks of extorting the ransom quantity might vary depending on particular local (regional) settings.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software.

    In particular areas, the Trojans typically wrongfully report having discovered some unlicensed applications made it possible for on the victim’s tool. The sharp then demands the user to pay the ransom.

    Faulty declarations concerning illegal web content.

    In nations where software program piracy is much less popular, this method is not as reliable for the cyber scams. Additionally, the TrojanClicker:Win32/Costrat.B popup alert might falsely assert to be stemming from a police establishment as well as will report having located youngster pornography or other unlawful information on the tool.

    TrojanClicker:Win32/Costrat.B popup alert might incorrectly declare to be deriving from a law enforcement organization and also will certainly report having situated child pornography or various other unlawful information on the device. The alert will in a similar way contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 2323E19B
md5: 65d2d68503735ce9f61eabfd1b34703e
name: 65D2D68503735CE9F61EABFD1B34703E.mlw
sha1: 9eea7ce3dff3b100dd44d8068dc0bfb085684bcf
sha256: 313bfbfd871bcfe40601f7366b3921c1f558325be761963ab7d62da2bad22f77
sha512: 6be57329696d381384c66cc463ce672074542e9685739ba734c2037324fcf81470032e60900f6926a370c02bb44bfcac50c0ff9c62293294fc4dadc2ef1b9043
ssdeep: 1536:cxNUcmQLTjUy4h9JTurSjQjS5o/05WAm0QNUoMQLoeCEqZW:sNRLX4heruQjSa/0ZmVZoaqZW
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

TrojanClicker:Win32/Costrat.B also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Generic.4!c
Elastic malicious (high confidence)
DrWeb Trojan.Spambot
ClamAV Win.Trojan.Clicker-1290
CMC Generic.Win32.65d2d68503!CMCRadar
ALYac Gen:Variant.Razy.446619
Cylance Unsafe
Zillya Trojan.Costrat.Win32.36
Sangfor Suspicious.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba TrojanClicker:Win32/Costrat.f32fc18b
Cyren W32/Trojan.SMAQ-8879
Symantec Backdoor.Rustock.B
APEX Malicious
Avast Win32:Susn-F [Trj]
Cynet Malicious (score: 100)
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Gen:Variant.Razy.446619
NANO-Antivirus Trojan.Win32.Costrat.pauf
ViRobot Trojan.Win32.Clicker.65536.I
MicroWorld-eScan Gen:Variant.Razy.446619
Tencent Win32.Trojan.Crypt.Wqna
Ad-Aware Gen:Variant.Razy.446619
Sophos ML/PE-A + Mal/EncPk-CQ
Comodo MalCrypt.Indus!@1qrzi1
BitDefenderTheta AI:Packer.EA4A65081E
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_GEN.R034E01HM15
McAfee-GW-Edition BehavesLike.Win32.VirRansom.kc
Emsisoft Gen:Variant.Razy.446619 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Clicker.Gen
Avira TR/Crypt.ZPACK.Gen
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.155458
Kingsoft Win32.Troj.AdClicker.(kcloud)
Microsoft TrojanClicker:Win32/Costrat.B
Arcabit Trojan.Razy.D6D09B
GData Gen:Variant.Razy.446619
TACHYON Trojan-Clicker/W32.Costrat.65551
AhnLab-V3 Trojan/Win32.Costrat.R91513
Acronis suspicious
McAfee Artemis!65D2D6850373
MAX malware (ai score=99)
VBA32 Malware-Cryptor.General.3
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_GEN.R034E01HM15
Rising (CLASSIC)
Yandex Trojan.CL.Costrat!O7ktyhNgL4E
Ikarus Virus.Win32.Virut
MaxSecure Trojan.Malware.1589633.susgen
AVG Win32:Susn-F [Trj]

How to remove TrojanClicker:Win32/Costrat.B 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 TrojanClicker:Win32/Costrat.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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove TrojanClicker:Win32/Costrat.B you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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