Trojan.Agent.CJOG

Written by Robert Bailey

What is Trojan.Agent.CJOG infection?

In this article you will locate about the definition of Trojan.Agent.CJOG and also its unfavorable impact on your computer. Such ransomware are a type of malware that is specified by online fraudulences to demand paying the ransom by a target.

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Most of the situations, Trojan.Agent.CJOG virus will advise its targets to start funds move for the objective of counteracting the changes that the Trojan infection has actually introduced to the sufferer’s device.

Trojan.Agent.CJOG Summary

These alterations 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.;
  • A process created a hidden window;
  • Executed a process and injected code into it, probably while unpacking;
  • Exhibits behavior characteristic of Nymaim malware;
  • Checks the version of Bios, possibly for anti-virtualization;
  • Zeus P2P (Banking Trojan);
  • 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 records found on the sufferer’s disk drive — so the victim can no longer make use of the data;
  • Preventing regular 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
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Trojan.Agent.CJOG

The most common networks whereby Trojan.Agent.CJOG Ransomware 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 source that hosts a malicious software program;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the target’s PC or avoid the device from operating in a correct way – while likewise positioning a ransom money note that discusses the need for the sufferers to effect the payment for the purpose of decrypting the documents or bring back the data system back to the first problem. In most instances, the ransom money note will certainly come up when the customer reboots the PC after the system has actually already been harmed.

Trojan.Agent.CJOG distribution channels.

In different edges of the globe, Trojan.Agent.CJOG expands by leaps and also bounds. However, the ransom money notes and tricks of obtaining the ransom amount might differ relying on certain regional (local) settings. The ransom notes and also methods of obtaining the ransom money quantity might vary depending on particular neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty signals about unlicensed software.

    In particular locations, the Trojans usually wrongfully report having detected some unlicensed applications made it possible for on the victim’s tool. The alert then requires the user to pay the ransom money.

    Faulty declarations concerning prohibited content.

    In nations where software program piracy is much less prominent, this method is not as effective for the cyber fraudulences. Alternatively, the Trojan.Agent.CJOG popup alert might incorrectly declare to be deriving from a police institution and also will report having located child porn or various other unlawful information on the tool.

    Trojan.Agent.CJOG popup alert might falsely declare to be deriving from a regulation enforcement organization as well as will certainly report having located youngster porn or various other unlawful data on the device. The alert will likewise contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: FF29439B
md5: f3abd3055a9636163466eab46ffb67c1
name: F3ABD3055A9636163466EAB46FFB67C1.mlw
sha1: 82c8923c5d7be3e2659162e2a7655c496d74e97b
sha256: dd7b66863a110c9e33d65623e5768bee9290e5db8efc9091e559fd019a3a5a17
sha512: 2a7c92e7dd121b56761e20d0fd1095586b9a5a9d3137ca85ebe6a39bf1c3baa41924bea2fa85cdaa73be1301eef70117b957c729c9ea1e1d15e677e617ff28e0
ssdeep: 24576:IrmcwoYbyLkEZF5rGhv8+exdwmzAOKdrqIO:gYyLkEZ/qhvEMn9U
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Agent.CJOG also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Agent.CJOG
FireEye Generic.mg.f3abd3055a963616
ALYac Trojan.Agent.CJOG
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan ( 00512c141 )
BitDefender Trojan.Agent.CJOG
K7GW Trojan ( 00512c141 )
Cybereason malicious.55a963
BitDefenderTheta Gen:NN.ZexaF.34804.XqW@aqIv0Omi
Cyren W32/Nymaim.BC.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/TrojanDownloader.Nymaim.BA
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Dropper.Nymaim-7174273-1
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Nymaim.eqxwkq
Rising Downloader.Nymaim!8.781 (TFE:2:7GjZLWCQjYP)
Ad-Aware Trojan.Agent.CJOG
Sophos ML/PE-A + Mal/Nymaim-F
Comodo TrojWare.Win32.Regsup.CJOG@77qxmr
F-Secure Heuristic.HEUR/AGEN.1133683
DrWeb Trojan.Nymaim.143
Zillya Trojan.Nymaim.Win32.4424
TrendMicro TROJ_NYMAIM.SMR2
McAfee-GW-Edition BehavesLike.Win32.Ransomware.bh
Emsisoft Trojan.Agent.CJOG (B)
SentinelOne Static AI – Malicious PE – Downloader
Jiangmin Trojan.Nymaim.dhg
Avira HEUR/AGEN.1133683
MAX malware (ai score=82)
Antiy-AVL Trojan/Win32.Nymaim
Microsoft Trojan:Win32/Ditertag.A
Arcabit Trojan.Agent.CJOG
AhnLab-V3 Trojan/Win32.Nymaim.R208240
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Agent.CJOG
Cynet Malicious (score: 100)
Acronis suspicious
McAfee Trojan-FMZG!F3ABD3055A96
TACHYON Trojan/W32.Agent.813568.AX
VBA32 BScope.Trojan.Nymaim
Malwarebytes Trojan.Nymaim
Panda Trj/Matsnu.A
TrendMicro-HouseCall TROJ_NYMAIM.SMR2
Tencent Malware.Win32.Gencirc.10ba6bd5
Yandex Trojan.Nymaim!+MXFawp4ipk
Ikarus Trojan-Downloader.Win32.Nymaim
Fortinet W32/Nymaim.BA!tr
AVG Win32:Malware-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)

How to remove Trojan.Agent.CJOG 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

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.Agent.CJOG 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.Agent.CJOG 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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