Trojan.Agent.CZOH

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

What is Trojan.Agent.CZOH infection?

In this article you will certainly find about the definition of Trojan.Agent.CZOH as well as its unfavorable impact on your computer system. Such ransomware are a kind of malware that is elaborated by on-line frauds to require paying the ransom money by a sufferer.

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Most of the situations, Trojan.Agent.CZOH virus will instruct its sufferers to initiate funds transfer for the objective of neutralizing the amendments that the Trojan infection has introduced to the target’s tool.

Trojan.Agent.CZOH 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.
  • 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;
  • Unconventionial language used in binary resources: Spanish (Guatemala);
  • 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 documents located on the target’s hard disk — so the sufferer can no longer utilize the data;
  • Preventing regular accessibility to the target’s workstation;
Similar behavior
Related domains
ipv4bot.whatismyipaddress.comRansom.Win32.GANDCRAB.SMLA.hp
ns1.wowservers.ruRansom.Win32.GANDCRAB.SMLA.hp
carder.bitRansom.Win32.GANDCRAB.SMLA.hp
ns2.wowservers.ruRansom.Win32.GANDCRAB.SMLA.hp
ransomware.bitRansom.Win32.GANDCRAB.SMLA.hp

Trojan.Agent.CZOH

The most common networks whereby Trojan.Agent.CZOH Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of customer winding up on a source that hosts a destructive software application;

As soon as the Trojan is efficiently infused, it will either cipher the information on the target’s computer or protect against the gadget from functioning in a proper fashion – while likewise positioning a ransom note that discusses the requirement for the targets to effect the repayment for the objective of decrypting the papers or restoring the data system back to the preliminary problem. In many circumstances, the ransom money note will show up when the client reboots the COMPUTER after the system has actually currently been damaged.

Trojan.Agent.CZOH distribution networks.

In different edges of the globe, Trojan.Agent.CZOH expands by jumps as well as bounds. Nevertheless, the ransom notes and methods of obtaining the ransom amount might vary depending upon specific regional (regional) setups. The ransom money notes as well as methods of extorting the ransom amount may differ depending on particular regional (local) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software.

    In particular areas, the Trojans frequently wrongfully report having actually identified some unlicensed applications allowed on the sufferer’s gadget. The alert after that demands the individual to pay the ransom money.

    Faulty declarations regarding illegal web content.

    In nations where software piracy is less popular, this approach is not as effective for the cyber fraudulences. Additionally, the Trojan.Agent.CZOH popup alert might wrongly declare to be deriving from a law enforcement establishment and also will report having located kid pornography or other prohibited data on the device.

    Trojan.Agent.CZOH popup alert may falsely claim to be acquiring from a regulation enforcement establishment and will report having situated kid porn or other illegal information on the gadget. The alert will in a similar way contain a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 344B2857
md5: d9306ea8d4b69de2808900bca763ecb6
name: D9306EA8D4B69DE2808900BCA763ECB6.mlw
sha1: d30c41e81ae01851c68800324b2f72190ca581a7
sha256: 077cd4e753c81cab5fe886e138e50f6681c59d28cb2e50fc354cc34083a2fa98
sha512: 3a6cfb7fdbb5c49bb7dee761131dc26d6706c66cd75552e3942d76dfe0710c43949ebd0ab124b88c89bbbaf0eccab4a61781d66e5239a0387a27facdfe35d5a2
ssdeep: 6144:xkLm3xU1qbOjxE6g9A5doCkFLO54SODBW690:xkMe1qeE620asYAq0
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Agent.CZOH also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.Agent.CZOH
FireEyeGeneric.mg.d9306ea8d4b69de2
CAT-QuickHealTrojan.Mauvaise.SL1
ALYacTrojan.Agent.CZOH
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforWin.Packed.Gandcrab-6552923-4
K7AntiVirusTrojan ( 0053305e1 )
BitDefenderTrojan.Agent.CZOH
K7GWTrojan ( 005185801 )
Cybereasonmalicious.8d4b69
BitDefenderThetaGen:NN.ZexaF.34590.qyX@aOAJkV5
CyrenW32/S-184acebd!Eldorado
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GHDU
APEXMalicious
AvastWin32:MalwareX-gen [Trj]
ClamAVWin.Packed.Gandcrab-6552923-4
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.Encoder.fculff
ViRobotTrojan.Win32.GandCrab.Gen.A
TencentMalware.Win32.Gencirc.10b2b0f7
Ad-AwareTrojan.Agent.CZOH
SophosMal/Generic-R + Mal/Agent-AUL
ComodoTrojWare.Win32.Cloxer.AY@7o68fu
F-SecureHeuristic.HEUR/AGEN.1103298
DrWebTrojan.Encoder.24384
ZillyaTrojan.GandCrypt.Win32.454
TrendMicroRansom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
EmsisoftTrojan.Agent.CZOH (B)
IkarusTrojan-Ransom.GandCrab
AviraHEUR/AGEN.1103298
MAXmalware (ai score=100)
Antiy-AVLTrojan/Win32.TSGeneric
MicrosoftTrojan:Win32/CryptInject.PVS!MTB
ArcabitTrojan.Agent.CZOH
AhnLab-V3Win-Trojan/Gandcrab.Exp
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Agent.CZOH
CynetMalicious (score: 100)
Acronissuspicious
McAfeeGenericRXFP-CP!D9306EA8D4B6
TACHYONRansom/W32.GandCrab
VBA32Malware-Cryptor.Limpopo
MalwarebytesGandcrab.Ransom.Encrypt.DDS
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom.Win32.GANDCRAB.SMLA.hp
RisingTrojan.GenKryptik!8.AA55 (CLOUD)
YandexTrojan.GenAsa!ztnny5Isebg
SentinelOneStatic AI – Malicious PE
MaxSecureRansomeware.CRAB.gen
FortinetW32/GenKryptik.CNAR!tr
AVGWin32:MalwareX-gen [Trj]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Trojan.Ransom.GandCrab.AQ

How to remove Trojan.Agent.CZOH ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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 Trojan.Agent.CZOH 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan.Agent.CZOH 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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