Written by Robert Bailey

What is Worm:Win32/Esfury.X infection?

In this short article you will certainly find regarding the meaning of Worm:Win32/Esfury.X and also its negative impact on your computer. Such ransomware are a form of malware that is clarified by on-line fraudulences to demand paying the ransom by a target.

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When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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In the majority of the cases, Worm:Win32/Esfury.X infection will certainly instruct its targets to start funds move for the purpose of neutralizing the changes that the Trojan infection has introduced to the sufferer’s gadget.

Worm:Win32/Esfury.X Summary

These modifications can be as follows:

  • Executable code extraction;
  • Creates RWX memory;
  • A process attempted to delay the analysis task.;
  • Attempts to connect to a dead IP:Port (10 unique times);
  • Attempts to modify Internet Explorer’s start page;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Installs itself for autorun at Windows startup;
  • Exhibits possible ransomware file modification behavior;
  • Creates a hidden or system file;
  • Attempts to modify proxy settings;
  • Operates on local firewall’s policies and settings;
  • Attempts to disable System Restore;
  • Attempts to disable UAC;
  • The sample wrote data to the system hosts file.;
  • Attempts to modify or disable Security Center warnings;
  • Attempts to modify UAC prompt behavior;
  • Anomalous binary characteristics;
  • Attempts to modify Explorer settings to prevent file extensions from being displayed;
  • Attempts to modify Explorer settings to prevent hidden files from being displayed;
  • Attempts to modify user notification settings;
  • Clears web history;
  • Ciphering the files found on the victim’s hard drive — so the sufferer can no more utilize the information;
  • Preventing normal access to the sufferer’s workstation;

Related domains:

whos.amung.us Trojan-Ransom.Win32.Blocker.ecsd
widgets.amung.us Trojan-Ransom.Win32.Blocker.ecsd
s053a56930a339n.directorio-w.com Trojan-Ransom.Win32.Blocker.ecsd
www.bing.com Trojan-Ransom.Win32.Blocker.ecsd
www.buscaid.com Trojan-Ransom.Win32.Blocker.ecsd
www6.buscaid.com Trojan-Ransom.Win32.Blocker.ecsd
ocsp.pki.goog Trojan-Ransom.Win32.Blocker.ecsd
img1.wsimg.com Trojan-Ransom.Win32.Blocker.ecsd
ocsp.starfieldtech.com Trojan-Ransom.Win32.Blocker.ecsd
crl.starfieldtech.com Trojan-Ransom.Win32.Blocker.ecsd


One of the most regular channels where Worm:Win32/Esfury.X are injected are:

  • By methods of phishing e-mails;
  • As a consequence of individual ending up on a source that hosts a harmful software program;

As soon as the Trojan is successfully infused, it will certainly either cipher the data on the victim’s computer or prevent the tool from operating in a proper way – while additionally positioning a ransom money note that points out the need for the sufferers to impact the repayment for the function of decrypting the papers or recovering the documents system back to the first condition. In a lot of instances, the ransom money note will certainly show up when the client restarts the COMPUTER after the system has actually currently been harmed.

Worm:Win32/Esfury.X circulation networks.

In different corners of the world, Worm:Win32/Esfury.X grows by leaps and bounds. Nevertheless, the ransom money notes and tricks of obtaining the ransom money amount might vary relying on particular neighborhood (regional) setups. The ransom money notes and also methods of extorting the ransom amount may differ depending on specific regional (local) setups.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having actually found some unlicensed applications enabled on the target’s device. The alert after that requires the user to pay the ransom.

    Faulty statements regarding illegal content.

    In nations where software piracy is much less preferred, this technique is not as reliable for the cyber frauds. Alternatively, the Worm:Win32/Esfury.X popup alert may incorrectly claim to be stemming from a law enforcement institution and also will certainly report having situated child porn or other illegal information on the gadget.

    Worm:Win32/Esfury.X popup alert may incorrectly declare to be obtaining from a regulation enforcement organization as well as will report having located kid pornography or various other illegal data on the tool. The alert will similarly include a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 16D5F472
md5: 92307db5f729b8b72ff6b4dc89507dd8
name: 92307DB5F729B8B72FF6B4DC89507DD8.mlw
sha1: 0bd1e85ebbbfa0fd952e6100ad84162203cf359b
sha256: b8db8332bf3db15c8be3e24fafe2bb6b9118cbf8d949d29c81448ab9a4ecd221
sha512: 24ae16e667b92ddd1633e727a7f0af640dbcb472db30e7446c85fbb8181655a333b30d99bde38707daa458f1d5a5e00e8b6328d589e641024e71e10164f78b19
ssdeep: 3072:QLNUe6+kwMMaMCvVwBr8P7iaKpCmJP0QSIGWSkeXcvXgg:Q5JMJgreKpCmN0QFpSRXcgg
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Worm:Win32/Esfury.X also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004bcce41 )
Lionic Trojan.Win32.Blocker.j!c
Elastic malicious (high confidence)
DrWeb Trojan.FakeAV.13520
ClamAV Win.Malware.Whidpktkwk-6738790-0
ALYac Generic.Malware.PfDNo!hid!Pk!23.0C374673
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
K7GW P2PWorm ( 004bbea91 )
Cybereason malicious.5f729b
Baidu Win32.Worm.VB.an
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/AutoRun.VB.XW
APEX Malicious
Avast Win32:dUmPeX [Susp]
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Blocker.ecsd
BitDefender Generic.Malware.PfDNo!hid!Pk!23.0C374673
NANO-Antivirus Trojan.Win32.FakeAV.cyjyog
MicroWorld-eScan Generic.Malware.PfDNo!hid!Pk!23.0C374673
Tencent Win32.Trojan.Blocker.Hqku
Ad-Aware Generic.Malware.PfDNo!hid!Pk!23.0C374673
Comodo Malware@#74r1t6w7t7ts
BitDefenderTheta AI:Packer.62730DDE1E
VIPRE Worm.Win32.Esfury
FireEye Generic.mg.92307db5f729b8b7
Emsisoft Generic.Malware.PfDNo!hid!Pk!23.0C374673 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Dropper.Gen
Microsoft Worm:Win32/Esfury.X
Arcabit Generic.Malware.PfDNo!hid!Pk!23.0C374673
GData Generic.Malware.PfDNo!hid!Pk!23.0C374673
AhnLab-V3 Trojan/Win32.Bifrose.C92284
Acronis suspicious
McAfee W32/Generic.worm!p2p.c
MAX malware (ai score=83)
VBA32 BScope.Trojan.Buzus
Malwarebytes Malware.AI.3774134533
Panda Generic Malware
Yandex Worm.AutoRun!TvqwMeA/jKE
Ikarus Worm.Win32.AutoRun
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/AutoRun.XW!tr
AVG Win32:dUmPeX [Susp]
Paloalto generic.ml
Qihoo-360 Win32/Worm.Esfury.HwMAx58A

How to remove Worm:Win32/Esfury.X 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

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 Worm:Win32/Esfury.X 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Worm:Win32/Esfury.X you can always ask me in the comments for getting help.

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  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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