Worm:Win32/Cridex.E

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

What is Worm:Win32/Cridex.E infection?

In this post you will certainly discover about the meaning of Worm:Win32/Cridex.E and also its negative influence on your computer. Such ransomware are a type of malware that is specified by on-line scams to demand paying the ransom money by a victim.

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In the majority of the instances, Worm:Win32/Cridex.E virus will advise its sufferers to initiate funds move for the purpose of neutralizing the amendments that the Trojan infection has actually presented to the sufferer’s tool.

Worm:Win32/Cridex.E Summary

These alterations can be as complies with:

  • 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 with CreateRemoteThread in a remote process;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Uses Windows utilities for basic functionality;
  • Code injection with CreateRemoteThread in a remote process;
  • Deletes its original binary from disk;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • A system process is generating network traffic likely as a result of process injection;
  • Behavior consistent with a dropper attempting to download the next stage.;
  • 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
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Ciphering the documents found on the target’s hard disk drive — so the target can no longer use the data;
  • Preventing routine accessibility to the victim’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
Related domains
z.whorecord.xyz Trojan.Ransom.Cerber.1
a.tomx.xyz Trojan.Ransom.Cerber.1

Worm:Win32/Cridex.E

The most normal channels where Worm:Win32/Cridex.E Ransomware Trojans are infused 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 an effect of individual ending up on a source that holds a destructive software;

As soon as the Trojan is effectively infused, it will either cipher the data on the victim’s PC or stop the gadget from operating in a proper manner – while additionally positioning a ransom note that discusses the need for the targets to effect the settlement for the objective of decrypting the papers or restoring the data system back to the first condition. In many circumstances, the ransom note will certainly show up when the client restarts the PC after the system has already been damaged.

Worm:Win32/Cridex.E distribution channels.

In different corners of the globe, Worm:Win32/Cridex.E expands by jumps and bounds. Nonetheless, the ransom notes as well as tricks of extorting the ransom money quantity might vary depending on specific neighborhood (regional) settings. The ransom money notes as well as tricks of extorting the ransom quantity might differ depending on specific regional (regional) setups.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software program.

    In specific areas, the Trojans frequently wrongfully report having actually identified some unlicensed applications allowed on the target’s gadget. The sharp after that demands the customer to pay the ransom money.

    Faulty statements concerning illegal content.

    In countries where software program piracy is less popular, this technique is not as effective for the cyber frauds. Alternatively, the Worm:Win32/Cridex.E popup alert might wrongly claim to be originating from a law enforcement establishment and will certainly report having located child porn or other unlawful information on the tool.

    Worm:Win32/Cridex.E popup alert might wrongly declare to be deriving from a legislation enforcement establishment as well as will report having located kid porn or other prohibited information on the gadget. The alert will in a similar way consist of a demand for the user to pay the ransom.

Technical details

File Info:

crc32: F78AF07B
md5: 21a718481006d04cf6765988e4e42fd8
name: 21A718481006D04CF6765988E4E42FD8.mlw
sha1: e2fac2f2db454b73184963513b720e0cf700c7e5
sha256: 07e08640167e76b54d79fcfbb17b1bdaa2e16ca4b03368894d1ce23b0e7b18e7
sha512: 2e41509601256221838259afceb4cbabdf6886dfc3ada2db07f6c6b0438302c8a4b3d5903e7aca403796bb989080a82c27eb1905d8cd4ad16722527494b95d80
ssdeep: 1536:ZWEX4wYmlA0B0U3MbLrduYdfKLdOUfSYbkpSo2/Ovf6GA2v0OLPL28aZs:bvwhrdq/T45SGA23Py8aZs
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileDescription: HyperTerminal Applet
FileVersion: 5.1.2600.0
CompanyName: Hilgraeve, Inc.
Translation: 0x0409 0x0000

Worm:Win32/Cridex.E also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Ransom.Cerber.1
FireEye Generic.mg.21a718481006d04c
McAfee PWS-Zbot-FBGU!21A718481006
Cylance Unsafe
VIPRE Trojan.Win32.Reveton.a (v)
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005110401 )
BitDefender Trojan.Ransom.Cerber.1
K7GW Trojan ( 005110401 )
Cybereason malicious.81006d
Cyren W32/Trojan.RVGI-3676
Symantec Packed.Generic.459
APEX Malicious
Avast Win32:Crypt-PPM [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Worm:Win32/Cridex.a3a2a580
NANO-Antivirus Virus.Win32.Gen.ccmw
AegisLab Trojan.Win32.Bublik.4!c
Ad-Aware Trojan.Ransom.Cerber.1
Sophos ML/PE-A + Mal/ZAccess-CG
Comodo Malware@#3hbgr2wemv175
F-Secure Trojan.TR/Crypt.ZPACK.Gen7
DrWeb Trojan.Necurs.97
Zillya Trojan.Bublik.Win32.11522
TrendMicro TROJ_SPNR.1BGD13
McAfee-GW-Edition PWS-Zbot-FBGU!21A718481006
Emsisoft Trojan.Ransom.Cerber.1 (B)
Ikarus Trojan-PWS.Win32.Zbot
Avira TR/Crypt.ZPACK.Gen7
MAX malware (ai score=100)
Antiy-AVL Trojan/Win32.Bublik
Kingsoft Win32.HeurC.KVM099.a.(kcloud)
Microsoft Worm:Win32/Cridex.E
Arcabit Trojan.Ransom.Cerber.1
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.Cerber.1
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/RansomCrypt.Gen
BitDefenderTheta Gen:NN.ZexaF.34590.kq0@aCy4aRhO
ALYac Trojan.Ransom.Cerber.1
TACHYON Trojan/W32.Bublik.169984
VBA32 Trojan.Bublik
Malwarebytes Trojan.FakeMS.INC
Panda Generic Malware
ESET-NOD32 a variant of Win32/Kryptik.BEZW
TrendMicro-HouseCall TROJ_SPNR.1BGD13
Rising Trojan.Win32.Generic.157AB0B7 (C64:YzY0OlGzEN/Ks9rW)
Yandex Trojan.GenAsa!zsHJIO/H2VA
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_97%
Fortinet W32/XPACKX.BBQT!tr
Webroot Trojan.Dropper.Gen
AVG Win32:Crypt-PPM [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Trojan.181

How to remove Worm:Win32/Cridex.E 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 Worm:Win32/Cridex.E 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 Worm:Win32/Cridex.E 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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