Backdoor:Win32/Kasidet.C

Written by Robert Bailey

What is Backdoor:Win32/Kasidet.C infection?

In this short article you will certainly locate concerning the meaning of Backdoor:Win32/Kasidet.C and also its negative effect on your computer. Such ransomware are a type of malware that is elaborated by online scams to demand paying the ransom by a victim.

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Most of the cases, Backdoor:Win32/Kasidet.C virus will certainly instruct its targets to initiate funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually presented to the victim’s gadget.

Backdoor:Win32/Kasidet.C Summary

These modifications can be as complies with:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Executed a process and injected code into it, probably while unpacking;
  • Queries information on disks, possibly for anti-virtualization. Since VMs share the same disk space so it is expected that they won’t be getting as much space as an application running on
    native hardware will have access to.
  • Detects the presence of Wine emulator via function name;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Mimics the file times of a Windows system file;
  • Installs itself for autorun at Windows startup.

    There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Checks the version of Bios, possibly for anti-virtualization;
  • Detects VirtualBox through the presence of a registry key;
  • Detects VMware through the presence of a registry key;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the target’s hard disk drive — so the sufferer can no longer utilize the data;
  • Preventing normal access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Backdoor:Win32/Kasidet.C

One of the most common channels through which Backdoor:Win32/Kasidet.C Trojans are injected are:

  • By means of phishing e-mails;
  • As a repercussion of user ending up on a source that holds a harmful software application;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s computer or avoid the tool from operating in a correct way – while also placing a ransom money note that states the requirement for the victims to effect the repayment for the purpose of decrypting the files or restoring the file system back to the initial problem. In the majority of instances, the ransom note will show up when the customer restarts the COMPUTER after the system has actually already been damaged.

Backdoor:Win32/Kasidet.C distribution channels.

In various edges of the world, Backdoor:Win32/Kasidet.C expands by leaps as well as bounds. Nonetheless, the ransom money notes and techniques of obtaining the ransom amount may vary depending upon specific local (local) setups. The ransom money notes and methods of extorting the ransom money amount might vary depending on particular regional (local) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software program.

    In specific areas, the Trojans usually wrongfully report having detected some unlicensed applications enabled on the sufferer’s device. The sharp after that demands the customer to pay the ransom money.

    Faulty declarations concerning illegal material.

    In countries where software program piracy is less preferred, this technique is not as efficient for the cyber fraudulences. Additionally, the Backdoor:Win32/Kasidet.C popup alert may incorrectly claim to be stemming from a police organization as well as will certainly report having located youngster porn or various other illegal data on the tool.

    Backdoor:Win32/Kasidet.C popup alert might falsely assert to be obtaining from a law enforcement institution as well as will report having situated child porn or various other prohibited information 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: 20DC5322
md5: 2751878a98d688e154081fc8824211f4
name: 2751878A98D688E154081FC8824211F4.mlw
sha1: 9e934f39c3be1a7277130ed0efd1c410375c471f
sha256: a31c5c4af0d506f875aad0ee188561494f21e3663d3875a077cd6b96dd5e145c
sha512: 686b3d802d26c1103be3ae2cb05ee6079e3b512b19ebcb014b0016defee3fa9a6825f88547e5511b00ccad592668ee28f28525bd18eb8b23a763002ea79386a9
ssdeep: 3072:KAsj8MBX8s0oXJU45aJo1QbPj/hBDOAapzOzl2VL8K5QpX:KAsBZ69JSOPzHyAWUyL8K+1
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

0: [No Data]

Backdoor:Win32/Kasidet.C also known as:

GridinSoft Trojan.Ransom.Gen
DrWeb Trojan.Inject.64629
MicroWorld-eScan Trojan.GenericKD.2481720
FireEye Generic.mg.2751878a98d688e1
CAT-QuickHeal Trojan.Generic
McAfee RDN/Generic.dx!dt3.a
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Generic.4!c
Sangfor Malware
K7AntiVirus Trojan ( 004c57b81 )
BitDefender Trojan.GenericKD.2481720
K7GW Trojan ( 004c57b81 )
Cybereason malicious.a98d68
BitDefenderTheta Gen:NN.ZedlaF.34804.gu4@aqOpW@c
Symantec Trojan Horse
Avast Win32:Malware-gen
ClamAV Win.Trojan.Agent-5436499-0
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Trojan:Win32/Cliject.07020076
NANO-Antivirus Trojan.Win32.MlwGen.dsryqp
Rising Trojan.Cliject!8.5D43 (CLOUD)
Ad-Aware Trojan.GenericKD.2481720
Emsisoft Trojan.GenericKD.2481720 (B)
Comodo Malware@#2sgp683ee0ym8
F-Secure Trojan:W32/Gamarue.E
McAfee-GW-Edition BehavesLike.Win32.Dropper.cc
Sophos Mal/Generic-S
Ikarus Trojan.Win32.Injector
Avira HEUR/AGEN.1109959
MAX malware (ai score=83)
Microsoft Backdoor:Win32/Kasidet.C
Gridinsoft Trojan.Win32.Downloader.oa
Arcabit Trojan.Generic.D25DE38
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.GenericKD.2481720
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Injector.R147171
VBA32 Trojan.Inject
Malwarebytes Generic.Malware/Suspicious
Panda Trj/Chgt.O
APEX Malicious
ESET-NOD32 Win32/Injector.CCOW
Tencent Nsis.Trojan.Onion.Hqll
Yandex Trojan.Injector!0qiL08h/EMo
SentinelOne Static AI – Suspicious PE – Ransomware
Fortinet W32/Injector.CCOW!tr
Webroot W32.Trojan.Gen
AVG Win32:Malware-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Trojan.983

How to remove Backdoor:Win32/Kasidet.C virus?

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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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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.

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Press “Install” button.

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Once installed, Anti-Malware will automatically run.

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Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Backdoor:Win32/Kasidet.C 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 Backdoor:Win32/Kasidet.C 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/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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