Win32/Delf.AVQ

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

What is Win32/Delf.AVQ infection?

In this post you will find about the interpretation of Win32/Delf.AVQ and its unfavorable influence on your computer. Such ransomware are a type of malware that is specified by online scams to demand paying the ransom money by a victim.

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In the majority of the instances, Win32/Delf.AVQ virus will instruct its victims to initiate funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has presented to the victim’s gadget.

Win32/Delf.AVQ Summary

These modifications can be as follows:

  • 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.
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Russian;
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the victim’s hard drive — so the sufferer can no more utilize the data;
  • Preventing normal accessibility to the victim’s workstation;
Similar behavior
Related domains
linknet.moy.su Ransom:Win32/LockScreen.b6b6d0e4

Win32/Delf.AVQ

One of the most normal networks where Win32/Delf.AVQ Ransomware are injected are:

  • By ways of phishing emails;
  • As a repercussion of customer ending up on a source that holds a malicious software;

As soon as the Trojan is effectively injected, it will either cipher the information on the target’s computer or protect against the tool from working in a proper fashion – while likewise putting a ransom money note that discusses the need for the targets to effect the payment for the objective of decrypting the documents or bring back the data system back to the initial problem. In most instances, the ransom note will turn up when the customer restarts the PC after the system has already been damaged.

Win32/Delf.AVQ distribution channels.

In various corners of the world, Win32/Delf.AVQ expands by leaps and also bounds. However, the ransom money notes and also tricks of extorting the ransom money amount may differ relying on specific regional (local) setups. The ransom money notes as well as methods of obtaining the ransom money amount may differ depending on certain neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software application.

    In particular areas, the Trojans commonly wrongfully report having discovered some unlicensed applications allowed on the victim’s device. The alert then demands the customer to pay the ransom money.

    Faulty declarations concerning prohibited content.

    In countries where software piracy is much less popular, this method is not as effective for the cyber frauds. Alternatively, the Win32/Delf.AVQ popup alert might incorrectly assert to be originating from a law enforcement organization and will report having located kid pornography or other illegal data on the gadget.

    Win32/Delf.AVQ popup alert might wrongly declare to be obtaining from a law enforcement establishment as well as will report having situated child porn or various other prohibited information on the device. The alert will likewise contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: CD032B47
md5: b26460413d054f2701be19a083f4a9e3
name: B26460413D054F2701BE19A083F4A9E3.mlw
sha1: 5ee8c9c5ed6b9d20b6b080b3d8cccce9f2386cb1
sha256: 9f0970851dc936921e55c6b03da911fdb3110a1ecc1c564fc8e4afa0820b3069
sha512: 9d499bda92178dc34e9762d677eb021cd398ee8de43b489439b1e487c9d1e1af1fd03e6fa83189734ccf52ef023b1759065a0024d61e42843f9e354c662e3dfb
ssdeep: 12288:WMiyeGyWj4yjUdYRyWPfFTUgt7VNiaTg5sR6SlC5BcKi:WLZWkyjUFMa07VNhEM6T5Bc
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright:
PrivateBuild: 1.8.7.0
InternalName:
FileVersion: 5.3
CompanyName:
SpecialBuild:
LegalTrademarks:
ProductName:
ProductVersion: 7.0.0.964
FileDescription:
OriginalFilename:
Translation: 0x0409 0x04e4

Win32/Delf.AVQ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 004f9bf51 )
Elastic malicious (high confidence)
DrWeb BackDoor.Siggen2.2223
Cynet Malicious (score: 100)
ALYac Gen:Variant.Jacard.150124
Cylance Unsafe
Zillya Trojan.Delf.Win32.99952
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
Alibaba Ransom:Win32/LockScreen.b6b6d0e4
K7GW Trojan ( 004f9bf51 )
Cybereason malicious.13d054
Cyren W32/Hupigon.E.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Delf.AVQ
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan-Spy.Win32.Stealer.gen
BitDefender Gen:Variant.Jacard.150124
NANO-Antivirus Trojan.Win32.Delf.etfyhs
MicroWorld-eScan Gen:Variant.Jacard.150124
Tencent Malware.Win32.Gencirc.114923c1
Ad-Aware Gen:Variant.Jacard.150124
Sophos Mal/Generic-S
Comodo Malware@#1ephu4rhqdi73
BitDefenderTheta AI:Packer.C6AD340A18
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition GenericRXCY-ZJ!B26460413D05
FireEye Generic.mg.b26460413d054f27
Emsisoft Gen:Variant.Jacard.150124 (B)
SentinelOne Static AI – Malicious PE
Jiangmin TrojanSpy.Stealer.aps
Avira HEUR/AGEN.1119540
eGambit Unsafe.AI_Score_100%
Microsoft Trojan:Win32/Tnega!ml
GData Gen:Variant.Jacard.150124
McAfee GenericRXCY-ZJ!B26460413D05
MAX malware (ai score=99)
VBA32 BScope.TrojanSpy.Stealer
Panda Trj/CI.A
Rising Trojan.Delf!8.67 (CLOUD)
Yandex Trojan.Delf!JVHfIyPZd8o
Ikarus Trojan.Win32.Delf
Fortinet W32/Delf.AVQ!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Delf.AVQ virus?

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 Win32/Delf.AVQ 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 Win32/Delf.AVQ 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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