Win32/Kryptik.EGMA

Written by Robert Bailey

What is Win32/Kryptik.EGMA infection?

In this short article you will locate about the meaning of Win32/Kryptik.EGMA and also its negative impact on your computer system. Such ransomware are a form of malware that is clarified by online frauds to require paying the ransom by a target.

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In the majority of the instances, Win32/Kryptik.EGMA ransomware will certainly instruct its sufferers to initiate funds transfer for the objective of neutralizing the modifications that the Trojan infection has presented to the victim’s device.

Win32/Kryptik.EGMA Summary

These alterations can be as complies with:

  • 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 (inter-process);
  • Injection (Process Hollowing);
  • Compression (or decompression);
  • 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.

  • A process created a hidden window;
  • 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.
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Portuguese;
  • Looks up the external IP address;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Deletes its original binary from disk;
  • Attempts to delete volume shadow copies;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • Modifies boot configuration settings;
  • 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
  • Writes a potential ransom message to disk;
  • Attempts to identify installed AV products by registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • 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 papers situated on the victim’s hard disk — so the sufferer can no longer use the information;
  • Preventing normal 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
myexternalip.com Ransom.Teslacrypt.D4
www.ceremonyofficiants.com Ransom.Teslacrypt.D4
vinvish.com Ransom.Teslacrypt.D4
mugegorcuk.com Ransom.Teslacrypt.D4
sistemaslye.com Ransom.Teslacrypt.D4
w3dot.info Ransom.Teslacrypt.D4

Win32/Kryptik.EGMA

The most common networks where Win32/Kryptik.EGMA Trojans are infused are:

  • By means of phishing emails;
  • As a repercussion of customer winding up on a resource that holds a malicious software program;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the victim’s PC or stop the tool from functioning in a correct way – while additionally positioning a ransom note that mentions the demand for the victims to impact the payment for the function of decrypting the records or bring back the documents system back to the first condition. In many instances, the ransom note will show up when the customer reboots the PC after the system has currently been damaged.

Win32/Kryptik.EGMA circulation networks.

In numerous corners of the world, Win32/Kryptik.EGMA grows by jumps as well as bounds. Nonetheless, the ransom notes as well as techniques of obtaining the ransom money amount might differ depending upon certain neighborhood (regional) setups. The ransom notes as well as techniques of obtaining the ransom money quantity may vary depending on particular local (regional) settings.

Ransomware injection

For instance:

    Faulty signals about unlicensed software.

    In certain areas, the Trojans often wrongfully report having actually discovered some unlicensed applications enabled on the target’s gadget. The alert after that demands the individual to pay the ransom money.

    Faulty declarations regarding illegal web content.

    In countries where software piracy is less prominent, this approach is not as efficient for the cyber frauds. Alternatively, the Win32/Kryptik.EGMA popup alert may falsely claim to be deriving from a police institution and will report having located child porn or other prohibited information on the gadget.

    Win32/Kryptik.EGMA popup alert may incorrectly assert to be obtaining from a regulation enforcement establishment and also will certainly report having situated child pornography or other unlawful information on the tool. The alert will in a similar way have a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 0FDCD8C6
md5: 0d8ff116ce8976fc820c996a6ee90c3a
name: 0D8FF116CE8976FC820C996A6EE90C3A.mlw
sha1: f04aa63508e99c54095cba747f31fb28fbfd392e
sha256: 25c1c67de6ead9c4efd8372caccfbba80cc77667dd9b172e5535b1c7a7b81a5e
sha512: 2c2c7b2eac7ac70d0bba26821a52e72e443428c154368c0ca173ff9901bcfdab386d81a759478ca6e85211003eb5fe3bebef076533eed647ad4803054a38311a
ssdeep: 6144:Qfe5pnRoT6kPsnlSfQBaDawzKEVkN66NFX7K8UgjZG66MzA8B0QOKrTLq0XY:QW5pIPkgf8maBESN6cF6xK/L2
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Profundity (C) 2014
InternalName: Plotters
FileDescription: Moment
OriginalFilename: Phosphorus.exe
CompanyName: MeasureUp

Win32/Kryptik.EGMA also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.Packed.40674
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Teslacrypt.D4
ALYac Gen:Variant.Razy.633800
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.822042
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Kryptik.607c411c
K7GW Trojan ( 0055dd191 )
K7AntiVirus Trojan ( 0055dd191 )
Baidu Win32.Trojan.Filecoder.k
Cyren W32/Trojan.DFYZ-5392
Symantec Ransom.Cryptolocker
ESET-NOD32 a variant of Win32/Kryptik.EGMA
APEX Malicious
Avast Win32:TeslaCrypt-DF [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Razy.633800
NANO-Antivirus Trojan.Win32.Encoder.dyysuq
ViRobot Trojan.Win32.TeslaCrypt.Gen.B
SUPERAntiSpyware Trojan.Agent/Gen-Dropper
MicroWorld-eScan Gen:Variant.Razy.633800
Tencent Malware.Win32.Gencirc.10c558a3
Ad-Aware Gen:Variant.Razy.633800
Sophos Mal/Generic-R + Troj/Ransom-BQX
Comodo Malware@#1ybz1a1ha9vcc
BitDefenderTheta Gen:NN.ZexaF.34688.uq0@amowJNdG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYPTESLA.SM
McAfee-GW-Edition PWSZbot-FAOI!0D8FF116CE89
FireEye Generic.mg.0d8ff116ce8976fc
Emsisoft Gen:Variant.Razy.633800 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Yakes.dhp
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1123567
Kingsoft Win32.Troj.GenericKD.v.(kcloud)
Microsoft Ransom:Win32/Tescrypt.C
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Razy.633800
TACHYON Trojan/W32.Crypto.331776
AhnLab-V3 Trojan/Win32.Teslacrypt.R169477
McAfee PWSZbot-FAOI!0D8FF116CE89
MAX malware (ai score=100)
VBA32 BScope.Trojan.Inject
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_CRYPTESLA.SM
Rising Trojan.Ransom-Tesla!1.A322 (CLOUD)
Yandex Trojan.GenAsa!xV1KV+IboW0
Ikarus Trojan.Win32.Crypt
Fortinet W32/TeslaCrypt.I!tr
AVG Win32:TeslaCrypt-DF [Trj]
Paloalto generic.ml

How to remove Win32/Kryptik.EGMA 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.EGMA 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.EGMA 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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