Win32:Karagany-HK [Trj]

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

What is Win32:Karagany-HK [Trj] infection?

In this article you will discover concerning the interpretation of Win32:Karagany-HK [Trj] and its negative effect on your computer system. Such ransomware are a form of malware that is specified by online scams to demand paying the ransom by a sufferer.

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Most of the cases, Win32:Karagany-HK [Trj] ransomware will certainly instruct its sufferers to launch funds transfer for the function of neutralizing the changes that the Trojan infection has actually introduced to the target’s device.

Win32:Karagany-HK [Trj] Summary

These adjustments can be as follows:

  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the sufferer’s hard disk drive — so the victim can no more make use of 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.

Win32:Karagany-HK [Trj]

The most normal channels whereby Win32:Karagany-HK [Trj] Ransomware Trojans are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of user winding up on a source that holds a malicious software program;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the sufferer’s PC or prevent the device from operating in an appropriate way – while likewise placing a ransom money note that points out the need for the targets to effect the settlement for the objective of decrypting the records or recovering the data system back to the initial condition. In most circumstances, the ransom money note will come up when the customer reboots the COMPUTER after the system has actually currently been damaged.

Win32:Karagany-HK [Trj] distribution channels.

In different edges of the globe, Win32:Karagany-HK [Trj] grows by leaps as well as bounds. Nevertheless, the ransom money notes as well as methods of obtaining the ransom quantity may differ relying on particular local (regional) settings. The ransom money notes as well as tricks of obtaining the ransom money quantity may vary depending on certain local (regional) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software.

    In specific locations, the Trojans often wrongfully report having actually identified some unlicensed applications enabled on the target’s tool. The sharp after that requires the customer to pay the ransom.

    Faulty statements concerning prohibited material.

    In nations where software piracy is less prominent, this method is not as effective for the cyber fraudulences. Additionally, the Win32:Karagany-HK [Trj] popup alert might incorrectly claim to be stemming from a law enforcement establishment as well as will report having located youngster pornography or various other prohibited data on the gadget.

    Win32:Karagany-HK [Trj] popup alert may incorrectly claim to be acquiring from a regulation enforcement organization and will report having situated child pornography or other prohibited data on the device. The alert will in a similar way include a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 41023775
md5: 242148aa56d464a8b1dd7441849a7216
name: 242148AA56D464A8B1DD7441849A7216.mlw
sha1: b01b8ef48b33b1a577189efd17f8aac5aaaa81a6
sha256: 9e348f5cbc8a0d921cce5d11ef5b49381cae8e0fd913957e33d679957cf14720
sha512: 29d2d2b5e374ae97e9a6d927dccd5268b30e0d764db1697f92989c93c206c1ff8eccf28dd3b5477a814dac71a844978eccbea0e6006b4741f30201c3cbd2ca28
ssdeep: 3072:x/IhAxsQGdee1jrg6Suc9k6Do0d094+LwNvBBntC6hx6YOgvDZG:FxsRYMg6SRPDPd09TAvB/eYOic
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32:Karagany-HK [Trj] also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusRiskware ( 0040eff71 )
Elasticmalicious (high confidence)
DrWebTrojan.Winlock.6257
CynetMalicious (score: 100)
ALYacGen:Variant.Barys.5309
CylanceUnsafe
ZillyaTrojan.Zbot.Win32.98853
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_80% (D)
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.a56d46
CyrenW32/Delf.CF.gen!Eldorado
SymantecSMG.Ransom!gen
ESET-NOD32Win32/Spy.Zbot.YW
APEXMalicious
AvastWin32:Karagany-HK [Trj]
ClamAVWin.Trojan.Zbot-21890
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Variant.Barys.5309
NANO-AntivirusTrojan.Win32.Zbot.rpsrs
MicroWorld-eScanGen:Variant.Barys.5309
TencentWin32.Trojan.Generic.Hoej
Ad-AwareGen:Variant.Barys.5309
SophosML/PE-A + Mal/Zbot-GU
ComodoTrojWare.Win32.Spy.Zbot.DVDY@4p74q3
BitDefenderThetaGen:NN.ZelphiF.34690.hmHfayP1QSg
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionPWS-Zbot.gen.bfm
FireEyeGeneric.mg.242148aa56d464a8
EmsisoftGen:Variant.Barys.5309 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.cbqdu
WebrootW32.Malware.Gen
AviraTR/Karagany.B
eGambitUnsafe.AI_Score_99%
MicrosoftTrojan:Win32/Occamy.C
ArcabitTrojan.Barys.D14BD
AegisLabTrojan.Win32.Generic.4!c
GDataWin32.Trojan.Genome.E
AhnLab-V3Spyware/Win32.Zbot.R26771
Acronissuspicious
McAfeeArtemis!242148AA56D4
MAXmalware (ai score=100)
VBA32BScope.Malware-Cryptor.FakeAV
PandaTrj/Pacrypt.E
RisingMalware.Heuristic!ET#100% (RDMK:cmRtazqt4HslawfjNElY4RFnpXu/)
YandexTrojan.GenAsa!un9dd+Tgfus
IkarusTrojan-Spy.Win32.Zbot
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Zbot.ZY!tr
AVGWin32:Karagany-HK [Trj]

How to remove Win32:Karagany-HK [Trj] 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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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 Win32:Karagany-HK [Trj] 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 Win32:Karagany-HK [Trj] 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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