Trojan.Win32.Chapak

What is Trojan.Win32.Chapak infection?

In this post you will certainly locate concerning the meaning of Trojan.Win32.Chapak and also its adverse impact on your computer. Such ransomware are a kind of malware that is specified by on-line fraudulences to require paying the ransom by a victim.

In the majority of the cases, Trojan.Win32.Chapak virus will certainly advise its victims to start funds move for the purpose of neutralizing the modifications that the Trojan infection has presented to the sufferer’s device.

Trojan.Win32.Chapak 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.
  • 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.
  • A process attempted to delay the analysis task.;
  • 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.

  • Performs some HTTP requests;
  • 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;
  • 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
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Creates a slightly modified copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the sufferer’s hard drive — so the target can no more use the information;
  • Preventing regular accessibility to the victim’s workstation;
Similar behavior
Related domains
ipv4bot.whatismyipaddress.com Win32:RansomX-gen [Ransom]
ns1.wowservers.ru Win32:RansomX-gen [Ransom]
carder.bit Win32:RansomX-gen [Ransom]
ns2.wowservers.ru Win32:RansomX-gen [Ransom]
ransomware.bit Win32:RansomX-gen [Ransom]

Trojan.Win32.Chapak

One of the most normal channels through which Trojan.Win32.Chapak Trojans are infused are:

  • By means of phishing e-mails;
  • As a consequence of user ending up on a resource that hosts a destructive software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the sufferer’s computer or protect against the gadget from operating in a proper way – while likewise positioning a ransom note that discusses the requirement for the sufferers to impact the repayment for the purpose of decrypting the documents or recovering the file system back to the first condition. In most instances, the ransom note will certainly show up when the client reboots the COMPUTER after the system has already been damaged.

Trojan.Win32.Chapak circulation networks.

In numerous edges of the globe, Trojan.Win32.Chapak grows by jumps as well as bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom money quantity may vary relying on certain regional (regional) settings. The ransom money notes and also methods of extorting the ransom quantity might vary depending on particular regional (regional) setups.

Ransomware injection

For example:

    Faulty notifies about unlicensed software application.

    In specific areas, the Trojans commonly wrongfully report having actually discovered some unlicensed applications enabled on the victim’s device. The sharp then demands the user to pay the ransom money.

    Faulty statements concerning unlawful content.

    In countries where software program piracy is less prominent, this approach is not as efficient for the cyber frauds. Alternatively, the Trojan.Win32.Chapak popup alert might falsely claim to be originating from a law enforcement establishment as well as will report having located youngster porn or other prohibited data on the tool.

    Trojan.Win32.Chapak popup alert may incorrectly assert to be deriving from a regulation enforcement establishment as well as will report having situated child pornography or various other illegal data on the tool. The alert will likewise have a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 48E918B0md5: ab7f6d57c468eaa648b43b83eb4f17e8name: AB7F6D57C468EAA648B43B83EB4F17E8.mlwsha1: 55cb1c2418fb84c8f764a31245298f57015e2a44sha256: 4e37ddb10fbba2c19d0f60d2cd69e715bdc18e0975bc22d8737f54a4adcc57a5sha512: 0eae716827fd7f51d1d89158c1ac56ce2683783a6d5523cfb00c04007946ee9b7b03c4c5dcf2485d5600a7a09814b9ac92a6c7e0e9409d454fcf263661062a9essdeep: 6144:OjP+g5/DQiCgy0WtQwPBg+ZVM82B+EYRB:iPL1kToW6wP6+c8m+jRBtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, dowbujozFileVersion: 3.7.9Translation: 0x0809 0x04b0

Trojan.Win32.Chapak also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKDZ.70109
FireEye Generic.mg.ab7f6d57c468eaa6
CAT-QuickHeal Trojan.Mauvaise.SL1
McAfee GenericRXFW-CZ!AB7F6D57C468
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Win.Packed.Gandcrab-6552923-4
K7AntiVirus Trojan ( 0053305e1 )
BitDefender Trojan.GenericKDZ.70109
K7GW Trojan ( 0056edd31 )
Cybereason malicious.7c468e
Cyren W32/S-6c33a011!Eldorado
Symantec Packed.Generic.525
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
ClamAV Win.Packed.Gandcrab-6552923-4
Kaspersky HEUR:Trojan.Win32.Chapak.gen
NANO-Antivirus Trojan.Win32.GandCrypt.fefmns
ViRobot Trojan.Win32.GandCrab.Gen.A
AegisLab Trojan.Win32.GandCrypt.j!c
Rising Ransom.GandCrab!8.F355 (RDMK:cmRtazpi+c2vkAxaICdoLGoBqw8g)
Ad-Aware Trojan.GenericKDZ.70109
Emsisoft Trojan.GenericKDZ.70109 (B)
Comodo TrojWare.Win32.Ransom.GandCrab.AS@7q9jv0
F-Secure Heuristic.HEUR/AGEN.1106533
DrWeb Trojan.Encoder.24384
Zillya Trojan.Coins.Win32.295
TrendMicro Ransom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
Sophos Mal/Generic-R + Mal/Agent-AUL
Ikarus Trojan-Ransom.GandCrab
Jiangmin Trojan.Chapak.ldo
MaxSecure Ransomeware.CRAB.gen
Avira HEUR/AGEN.1106533
MAX malware (ai score=100)
Antiy-AVL Trojan[Ransom]/Win32.GandCrypt
Microsoft Ransom:Win32/GandCrab.AE
Arcabit Trojan.Generic.D111DD
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
ZoneAlarm HEUR:Trojan.Win32.Chapak.gen
GData Trojan.GenericKDZ.70109
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/Gandcrab.Exp
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34590.ru1@aW1Aatbi
ALYac Trojan.GenericKDZ.70109
TACHYON Ransom/W32.GandCrab
VBA32 BScope.TrojanRansom.GandCrypt
Malwarebytes Ransom.GandCrab
Panda Trj/Genetic.gen
ESET-NOD32 Win32/Filecoder.GandCrab.B
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMLA.hp
Tencent Malware.Win32.Gencirc.114b404b
Yandex Trojan.GenAsa!TLXIzJS0UAg
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Agent.BFJ!tr
AVG Win32:RansomX-gen [Ransom]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Trojan.Ransom.611

How to remove Trojan.Win32.Chapak 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Trojan.Win32.Chapak you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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