Trojan.Win32.Chapak.eypc

Written by Robert Bailey

What is Trojan.Win32.Chapak.eypc infection?

In this post you will certainly find concerning the meaning of Trojan.Win32.Chapak.eypc and also its unfavorable impact on your computer system. Such ransomware are a form of malware that is clarified by on-line fraudulences to demand paying the ransom by a sufferer.

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In the majority of the cases, Trojan.Win32.Chapak.eypc infection will certainly advise its sufferers to initiate funds transfer for the function of counteracting the amendments that the Trojan infection has presented to the target’s gadget.

Trojan.Win32.Chapak.eypc Summary

These modifications 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.
  • 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;
  • Expresses interest in specific running processes;
  • Unconventionial language used in binary resources: Ukrainian;
  • 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;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • 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 papers found on the victim’s disk drive — so the sufferer can no more make use of the data;
  • Preventing regular accessibility to the sufferer’s workstation;

Trojan.Win32.Chapak.eypc

One of the most typical networks where Trojan.Win32.Chapak.eypc Ransomware Trojans are injected 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 consequence of user ending up on a resource that organizes a malicious software;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the victim’s PC or stop the gadget from working in a proper fashion – while likewise positioning a ransom money note that points out the demand for the sufferers to impact the repayment for the function of decrypting the records or recovering the file system back to the initial condition. In many circumstances, the ransom money note will turn up when the client restarts the COMPUTER after the system has already been harmed.

Trojan.Win32.Chapak.eypc distribution networks.

In different corners of the world, Trojan.Win32.Chapak.eypc grows by leaps and also bounds. Nonetheless, the ransom money notes and techniques of extorting the ransom money amount may differ relying on certain neighborhood (local) setups. The ransom money notes and also techniques of extorting the ransom quantity may vary depending on particular local (regional) settings.

Ransomware injection

For example:

    Faulty informs about unlicensed software.

    In particular locations, the Trojans usually wrongfully report having actually found some unlicensed applications enabled on the target’s device. The alert then demands the customer to pay the ransom money.

    Faulty declarations regarding illegal web content.

    In nations where software application piracy is less popular, this method is not as reliable for the cyber scams. Conversely, the Trojan.Win32.Chapak.eypc popup alert may wrongly assert to be deriving from a law enforcement establishment and also will report having located kid pornography or other prohibited data on the gadget.

    Trojan.Win32.Chapak.eypc popup alert might wrongly assert to be acquiring from a law enforcement establishment and also will report having situated youngster pornography or various other illegal information on the tool. The alert will in a similar way have a need for the user to pay the ransom.

Technical details

File Info:

crc32: 5A0BB8C0
md5: bf85408da08df77247c29b0aedc3c956
name: BF85408DA08DF77247C29B0AEDC3C956.mlw
sha1: 7a425c7c120509c6c858c4e25894b5b3ab7546dd
sha256: d8210a47fd50734f1802c989695b7ea72b3e93a0db6c1b86e9e721a5be8365dd
sha512: 2bbd019e4a791de22c99d06d32d001b515b7bd1ccc768988ba13b3c7b6f78c57123ca24b01a8bdb3ce76d4abff99e3cac3ed450ebad01536fa830b7e1b87a971
ssdeep: 98304:5bt5jQkstxNOpIOo8TmLfefrdcG3ZBbzstu4oJM9rswLu+JuYqlk+YHn9ZHM4bh:le07mLWfX/HsZ8UYuu6i+7gSI3q8IZG
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

InternalSurname: vebug.ekc
Prod: 1.3.5
FileVersions: 1.0.5.1
LegalCo: Copyri (C) 2019, pidmudakionca

Trojan.Win32.Chapak.eypc also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.36185973
FireEye Generic.mg.bf85408da08df772
Qihoo-360 Win32/Trojan.82d
McAfee GenericRXAA-AA!BF85408DA08D
Cylance Unsafe
Sangfor Malware
K7AntiVirus Trojan ( 0057678e1 )
BitDefender Trojan.GenericKD.36185973
K7GW Trojan ( 0057678e1 )
CrowdStrike win/malicious_confidence_100% (D)
Cyren W32/Trojan.JUGQ-3044
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:BotX-gen [Trj]
Kaspersky Trojan.Win32.Chapak.eypc
Alibaba Trojan:Win32/Chapak.ec464ad3
Rising Trojan.Kryptik!1.D183 (CLASSIC)
Ad-Aware Trojan.GenericKD.36185973
Emsisoft Trojan.GenericKD.36185973 (B)
F-Secure Trojan.TR/AD.GoCloudnet.jxcsu
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.STOP.USMANAL21
McAfee-GW-Edition BehavesLike.Win32.RansomGandCrab.rc
Sophos Mal/Generic-S
Ikarus Trojan.Win32.Crypt
Webroot W32.Malware.Gen
Avira TR/AD.GoCloudnet.jxcsu
Microsoft Trojan:Win32/Ranumbot.RD!MTB
Gridinsoft Trojan.Win32.Packed.oa
Arcabit Trojan.Generic.D2282775
ZoneAlarm Trojan.Win32.Chapak.eypc
GData Trojan.GenericKD.36185973
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Gen.Reputation.C4304597
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34780.@pGfaKRdFsgc
ALYac Trojan.GenericKD.36185973
Malwarebytes Trojan.MalPack.GS
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.HIXT
TrendMicro-HouseCall Ransom.Win32.STOP.USMANAL21
Tencent Win32.Trojan.Chapak.Pjdl
SentinelOne Static AI – Malicious PE
Fortinet W32/Kryptik.HIZL!tr
AVG Win32:BotX-gen [Trj]
Cybereason malicious.c12050
Paloalto generic.ml

How to remove Trojan.Win32.Chapak.eypc 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

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.

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 Trojan.Win32.Chapak.eypc 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 Trojan.Win32.Chapak.eypc 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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