Win32/Kryptik.GMVP

What is Win32/Kryptik.GMVP infection?

In this short article you will discover about the definition of Win32/Kryptik.GMVP and its unfavorable effect on your computer system. Such ransomware are a form of malware that is clarified by on the internet frauds to demand paying the ransom money by a target.

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In the majority of the instances, Win32/Kryptik.GMVP ransomware will certainly instruct its victims to start funds transfer for the objective of neutralizing the modifications that the Trojan infection has presented to the target’s tool.

Win32/Kryptik.GMVP Summary

These modifications can be as follows:

  • 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.
  • 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Portuguese (Brazilian);
  • Detects the presence of Wine emulator via function name;
  • Detects Sandboxie through the presence of a library;
  • Detects SunBelt Sandbox through the presence of a library;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Operates on local firewall’s policies and settings;
  • Creates a copy of itself;
  • Attempts to disable System Restore. System Restore function – allows you to revert the computer’s state (system files, applications, and system settings) to that of a previous point in time, which can be used to recover after a virus attack.
  • Attempts to modify or disable Security Center warnings;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the victim’s hard disk drive — so the target can no more use the data;
  • Preventing routine accessibility 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.

Win32/Kryptik.GMVP

The most typical channels through which Win32/Kryptik.GMVP Ransomware Trojans are infused are:

  • By means of phishing emails;
  • As an effect of customer winding up on a resource that hosts a destructive software;

As quickly as the Trojan is effectively injected, it will either cipher the information on the target’s computer or avoid the tool from operating in an appropriate way – while also putting a ransom money note that mentions the need for the victims to effect the settlement for the objective of decrypting the papers or recovering the data system back to the first condition. In the majority of circumstances, the ransom money note will certainly turn up when the customer reboots the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.GMVP distribution networks.

In different edges of the world, Win32/Kryptik.GMVP grows by jumps and also bounds. Nonetheless, the ransom notes and also tricks of extorting the ransom quantity might differ depending on particular regional (local) settings. The ransom money notes and methods of extorting the ransom money quantity might vary depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software.

    In specific locations, the Trojans typically wrongfully report having spotted some unlicensed applications allowed on the victim’s gadget. The sharp then requires the customer to pay the ransom money.

    Faulty declarations about prohibited web content.

    In nations where software piracy is much less popular, this technique is not as reliable for the cyber scams. Additionally, the Win32/Kryptik.GMVP popup alert might incorrectly declare to be originating from a police establishment and also will certainly report having located child porn or various other illegal information on the device.

    Win32/Kryptik.GMVP popup alert might falsely assert to be acquiring from a regulation enforcement organization and will report having situated youngster porn or other unlawful data on the gadget. The alert will likewise consist of a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: F4AA5D70
md5: a166c385375a603a849fe851a946980e
name: A166C385375A603A849FE851A946980E.mlw
sha1: 37565fae06c90c24e1cf3388d97868514b8826c1
sha256: 2543d8dc3621b6595664f22e50dc96e8fbc6825c81fa8c5b06e4b960dcdd881a
sha512: d412e8270fdd76d963bc18f1e3be5c1ed9251d5ccdffa150fbef014db5d695231d5f2f028970bfe0f35899b1fe775d572f016b276792159be8215395c925f3d6
ssdeep: 3072:/gwtEs7QPQIw/yhbI+GrxS5lr3CvIvs/l/IR:/gwis7lj/yh0lA5lyvIvs/l/IR
type: MS-DOS executable, MZ for MS-DOS

Version Info:

FileVersion: 1.0.0.12
ProductVersion: 1.0.4
Translation: 0x0339 0x04b0

Win32/Kryptik.GMVP also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00542eb91 )
Elastic malicious (high confidence)
DrWeb Win32.HLLW.Autoruner2.62679
Cynet Malicious (score: 100)
ALYac Trojan.GenericKDZ.51236
Cylance Unsafe
Zillya Adware.Bayrob.Win32.1871
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
K7GW Trojan ( 00542eb91 )
Cybereason malicious.5375a6
ESET-NOD32 a variant of Win32/Kryptik.GMVP
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
Kaspersky HEUR:Trojan-Ransom.Win32.Blocker.gen
BitDefender Trojan.GenericKDZ.51236
NANO-Antivirus Trojan.Win32.Bayrob.fkgmiw
ViRobot Trojan.Win32.GandCrab.300544
MicroWorld-eScan Trojan.GenericKDZ.51236
Tencent Virus.Win32.Virut.ua
Ad-Aware Trojan.GenericKDZ.51236
Sophos ML/PE-A + Mal/GandCrab-G
Comodo TrojWare.Win32.Ransom.Crypmod.AE@7xspg9
BitDefenderTheta Gen:NN.ZexaF.34628.sC0@aqVTp!eG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Trojan.Win32.SODINOK.SM.hp
McAfee-GW-Edition BehavesLike.Win32.Dropper.dt
FireEye Generic.mg.a166c385375a603a
Emsisoft Trojan.GenericKDZ.51236 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Win32/Virut.bv
Avira TR/Patched.Gen
eGambit Unsafe.AI_Score_80%
Microsoft Trojan:Win32/Gandcrab.AF
GData Trojan.GenericKDZ.51236
AhnLab-V3 Trojan/Win.MalPe.X2055
McAfee Trojan-FQIC!A166C385375A
MAX malware (ai score=82)
VBA32 BScope.Trojan.Cutwail
Malwarebytes Trojan.MalPack.GS
TrendMicro-HouseCall Trojan.Win32.SODINOK.SM.hp
Rising Trojan.Cloxer!8.F54F (TFE:dGZlOgUJ8Vsn1Vlxpg)
Yandex Trojan.GenAsa!2KWTZIpqRMc
Ikarus Trojan.Win32.Danabot
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/Kryptik.GMUU!tr
AVG Win32:TrojanX-gen [Trj]
Qihoo-360 Win32/Ransom.GandCrab.HwoCAAMB

How to remove Win32/Kryptik.GMVP virus?

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.GMVP 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 Win32/Kryptik.GMVP 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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