Win32/Kryptik.HJRM

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

What is Win32/Kryptik.HJRM infection?

In this short article you will discover regarding the definition of Win32/Kryptik.HJRM as well as its unfavorable effect on your computer. Such ransomware are a kind of malware that is clarified by on the internet scams to demand paying the ransom by a victim.

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In the majority of the cases, Win32/Kryptik.HJRM ransomware will certainly advise its sufferers to launch funds move for the function of reducing the effects of the changes that the Trojan infection has presented to the target’s device.

Win32/Kryptik.HJRM Summary

These adjustments can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Injection with CreateRemoteThread in a remote process;
  • Attempts to connect to a dead IP:Port (3 unique times);
  • 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;
  • A process attempted to delay the analysis task.;
  • A process created a hidden window;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Slovenian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Code injection with CreateRemoteThread in a remote process;
  • Modifies boot configuration settings;
  • A system process is generating network traffic likely as a result of process injection;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Likely virus infection of existing system binary;
  • Clears Windows events or logs;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the target’s hard disk drive — so the sufferer can no more make use of 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
geoiptool.comWin32/Ransom.Generic.HwoClssA
www.geodatatool.comWin32/Ransom.Generic.HwoClssA
ocsp.comodoca.comWin32/Ransom.Generic.HwoClssA
ocsp.usertrust.comWin32/Ransom.Generic.HwoClssA
crl.usertrust.comWin32/Ransom.Generic.HwoClssA
iplogger.orgWin32/Ransom.Generic.HwoClssA
ocsp.sectigo.comWin32/Ransom.Generic.HwoClssA

Win32/Kryptik.HJRM

The most normal networks whereby Win32/Kryptik.HJRM Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of individual winding up on a resource that hosts a malicious software;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the target’s computer or protect against the tool from operating in an appropriate fashion – while also positioning a ransom money note that mentions the need for the sufferers to impact the payment for the purpose of decrypting the documents or bring back the data system back to the first problem. In many instances, the ransom money note will come up when the client reboots the PC after the system has actually already been damaged.

Win32/Kryptik.HJRM circulation networks.

In various corners of the world, Win32/Kryptik.HJRM expands by jumps and also bounds. However, the ransom notes and tricks of obtaining the ransom quantity may vary depending upon specific local (regional) settings. The ransom notes and also techniques of obtaining the ransom money quantity may differ depending on specific regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software.

    In specific locations, the Trojans often wrongfully report having actually detected some unlicensed applications enabled on the victim’s device. The alert then demands the individual to pay the ransom money.

    Faulty declarations regarding illegal content.

    In nations where software piracy is less popular, this technique is not as effective for the cyber frauds. Alternatively, the Win32/Kryptik.HJRM popup alert may wrongly declare to be stemming from a police organization and also will certainly report having located child porn or other prohibited information on the gadget.

    Win32/Kryptik.HJRM popup alert may falsely declare to be obtaining from a law enforcement establishment as well as will certainly report having situated child porn or other prohibited data on the gadget. The alert will similarly have a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 88E0CD1A
md5: 79927881700955c52f113bc2d6968698
name: 79927881700955C52F113BC2D6968698.mlw
sha1: aa8b7920718123cafa0eafa6c843b801f8c157c1
sha256: 4f87fefc9bf667f1d60e9ac07bdcf91013d609b8222b6d1b2995706f7ece1b07
sha512: 3d5325aeacb1ed1502803e2ab4880d121532f5865409813e6d31f90f57bc2646fd19695cd0172ad7b2aa772d1ff4d74cb4f43343e502b033a8468f2874a7a413
ssdeep: 6144:dVJlmm1sDf9HkjLCTEUs38bV7WSfLa9fosD:7Jlm7byqXs34V79DaG
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.HJRM also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.33526
Qihoo-360Win32/Ransom.Generic.HwoClssA
McAfeeArtemis!799278817009
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
AegisLabHacktool.Win32.Shellcode.3!c
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 005788301 )
BitDefenderTrojan.GenericKD.36413997
K7GWTrojan ( 005788301 )
CrowdStrikewin/malicious_confidence_100% (W)
ArcabitTrojan.Generic.D22BA22D
BitDefenderThetaGen:NN.ZexaF.34590.quW@aSZtq7ac
SymantecML.Attribute.HighConfidence
TrendMicro-HouseCallTROJ_GEN.R002C0WBS21
AvastWin32:MalwareX-gen [Trj]
CynetMalicious (score: 100)
KasperskyHEUR:Exploit.Win32.Shellcode.gen
AlibabaRansom:Win32/generic.ali2000010
MicroWorld-eScanTrojan.GenericKD.36413997
RisingTrojan.Kryptik!1.D250 (CLOUD)
Ad-AwareTrojan.GenericKD.36413997
SophosMal/Generic-S
Comodo.UnclassifiedMalware@0
F-SecureTrojan.TR/AD.ZardRansom.xejhd
TrendMicroTROJ_GEN.R002C0WBS21
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
FireEyeGeneric.mg.79927881700955c5
EmsisoftTrojan.GenericKD.36413997 (B)
IkarusTrojan.Win32.Ranumbot
AviraTR/AD.ZardRansom.xejhd
KingsoftWin32.Troj.Generic_a.a.(kcloud)
GridinsoftTrojan.Win32.Downloader.sa
MicrosoftTrojan:Win32/Glupteba!ml
ZoneAlarmHEUR:Exploit.Win32.Shellcode.gen
GDataWin32.Trojan-Ransom.Zeppelin.6SKL6V
AhnLab-V3Malware/Gen.RL_Reputation.R368513
ALYacTrojan.GenericKD.36413997
MAXmalware (ai score=100)
MalwarebytesTrojan.MalPack
PandaTrj/GdSda.A
APEXMalicious
ESET-NOD32a variant of Win32/Kryptik.HJRM
TencentWin32.Exploit.Shellcode.Ajlq
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_88%
FortinetPossibleThreat.PALLAS.H
AVGWin32:MalwareX-gen [Trj]
Paloaltogeneric.ml
MaxSecureTrojan.Malware.300983.susgen

How to remove Win32/Kryptik.HJRM 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 Win32/Kryptik.HJRM 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 Win32/Kryptik.HJRM 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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