Trojan-Downloader.JS.Agent.jkb

Written by Robert Bailey

What is Trojan-Downloader.JS.Agent.jkb infection?

In this post you will find regarding the definition of Trojan-Downloader.JS.Agent.jkb and also its adverse impact on your computer system. Such ransomware are a kind of malware that is elaborated by online frauds to require paying the ransom by a target.

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In the majority of the situations, Trojan-Downloader.JS.Agent.jkb ransomware will advise its targets to initiate funds move for the function of counteracting the changes that the Trojan infection has actually presented to the victim’s tool.

Trojan-Downloader.JS.Agent.jkb Summary

These adjustments can be as complies with:

  • Executable code extraction;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • Creates RWX memory;
  • Performs some HTTP requests;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • Installs itself for autorun at Windows startup;
  • A wscript.exe process commonly used in script or document file downloaders initiated network activity;
  • Detects VirtualBox through the presence of a registry key;
  • Ciphering the documents found on the target’s hard disk — so the target can no more utilize the data;
  • Preventing regular access to the victim’s workstation;

Related domains:

fanjs.com Trojan-Ransom.Script.Locky

Trojan-Downloader.JS.Agent.jkb

One of the most typical channels through which Trojan-Downloader.JS.Agent.jkb Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of individual winding up on a resource that hosts a harmful software application;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s computer or protect against the gadget from working in an appropriate way – while additionally positioning a ransom note that mentions the demand for the sufferers to effect the settlement for the purpose of decrypting the papers or recovering the file system back to the preliminary condition. In the majority of instances, the ransom money note will certainly come up when the client restarts the COMPUTER after the system has already been damaged.

Trojan-Downloader.JS.Agent.jkb circulation channels.

In different corners of the globe, Trojan-Downloader.JS.Agent.jkb expands by jumps and also bounds. Nevertheless, the ransom notes as well as tricks of obtaining the ransom quantity may vary relying on certain regional (regional) settings. The ransom notes and methods of extorting the ransom quantity may differ depending on certain local (regional) setups.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software application.

    In particular locations, the Trojans often wrongfully report having discovered some unlicensed applications allowed on the target’s device. The sharp then demands the customer to pay the ransom.

    Faulty statements about illegal material.

    In countries where software piracy is much less preferred, this approach is not as reliable for the cyber scams. Alternatively, the Trojan-Downloader.JS.Agent.jkb popup alert may falsely assert to be stemming from a police organization and will report having situated kid pornography or other illegal information on the tool.

    Trojan-Downloader.JS.Agent.jkb popup alert might wrongly declare to be deriving from a legislation enforcement institution and will report having situated child porn or other prohibited information on the gadget. The alert will similarly consist of a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: EA93123C
md5: dc5646bf4c0680c44dc02484ecfae2f7
name: Image53507421845332.zip
sha1: 34a914e3d067254c270e6c19cc25ca207161accc
sha256: efa61c0550c044a94238d890a16f096d0439e76b25b4d572f7d9ec10c5d62349
sha512: 17f1e4851d86089dd1464dc5519b5f1feae37496f41685c81d728235b1cfaa3db3f39d8e38d8516c42a080cc8f8b3a75eb942619a192294aacf3bb455d330421
ssdeep: 96:oYtWhW6WTUjam5XVwzny8vUwGVC9PBdRDaD1W:3+IEBXV4y8vUwGOtDaD1W
type: Zip archive data, at least v2.0 to extract

Version Info:

0: [No Data]

Trojan-Downloader.JS.Agent.jkb also known as:

GridinSoft Trojan.Ransom.Gen
CAT-QuickHeal JS.Dropper.G
ALYac JS:Trojan.JS.Downloader.EG
VIPRE Trojan-Downloader.JS.Nemucod.g (v)
K7GW Trojan ( 004dfe6d1 )
K7AntiVirus Trojan ( 004dfe6d1 )
Baidu JS.Trojan.Nemucod.bp
F-Prot JS/Locky.H1!Eldorado
Symantec SecurityRisk.gen1
ESET-NOD32 JS/TrojanDownloader.Nemucod.LP
TrendMicro-HouseCall JS_NEMUCOD.SMVV2
Avast JS:Agent-DUQ [Trj]
ClamAV Win.Malware.Locky-11177
GData JS:Trojan.JS.Downloader.EG
Kaspersky Trojan-Downloader.JS.Agent.jkb
BitDefender JS:Trojan.JS.Downloader.EG
NANO-Antivirus Trojan.Script.Nemucod.ebdlzx
AegisLab Troj.Downloader.Script!c
Emsisoft JS:Trojan.JS.Downloader.EG (B)
F-Secure Trojan-Downloader:JS/Dridex.W
DrWeb JS.DownLoader.1225
TrendMicro JS_NEMUCOD.SMVV2
McAfee-GW-Edition JS/Nemucod.eq
Sophos Mal/DrodZp-A
Cyren JS/Locky.H1.gen
Jiangmin TrojanDownloader.Script.ebd
Avira HEUR/Suspar.Gen
Antiy-AVL Trojan[Downloader]/JS.Nemucod.pd
Arcabit JS:Trojan.JS.Downloader.EG
ZoneAlarm Trojan-Downloader.JS.Agent.jkb
Microsoft TrojanDownloader:JS/Swabfex.P
AhnLab-V3 JS/Obfus.S14
McAfee JS/Nemucod.eq
AVware Trojan-Downloader.JS.Nemucod.g (v)
Tencent Js.Trojan.Raas.Auto
Ikarus Trojan-Ransom.Script.Locky
Fortinet Malware_Generic.P0
AVG JS/Downloader.Agent
Qihoo-360 trojan.js.downloader.1

How to remove Trojan-Downloader.JS.Agent.jkb 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

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-Downloader.JS.Agent.jkb 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-Downloader.JS.Agent.jkb 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: http://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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