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Win32/Delf.AVQ

By Lucas Hayes

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.

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;
linknet.moy.suRansom: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: CD032B47md5: b26460413d054f2701be19a083f4a9e3name: B26460413D054F2701BE19A083F4A9E3.mlwsha1: 5ee8c9c5ed6b9d20b6b080b3d8cccce9f2386cb1sha256: 9f0970851dc936921e55c6b03da911fdb3110a1ecc1c564fc8e4afa0820b3069sha512: 9d499bda92178dc34e9762d677eb021cd398ee8de43b489439b1e487c9d1e1af1fd03e6fa83189734ccf52ef023b1759065a0024d61e42843f9e354c662e3dfbssdeep: 12288:WMiyeGyWj4yjUdYRyWPfFTUgt7VNiaTg5sR6SlC5BcKi:WLZWkyjUFMa07VNhEM6T5Bctype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

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

Win32/Delf.AVQ also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusTrojan ( 004f9bf51 )
Elasticmalicious (high confidence)
DrWebBackDoor.Siggen2.2223
CynetMalicious (score: 100)
ALYacGen:Variant.Jacard.150124
CylanceUnsafe
ZillyaTrojan.Delf.Win32.99952
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_90% (D)
AlibabaRansom:Win32/LockScreen.b6b6d0e4
K7GWTrojan ( 004f9bf51 )
Cybereasonmalicious.13d054
CyrenW32/Hupigon.E.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Delf.AVQ
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan-Spy.Win32.Stealer.gen
BitDefenderGen:Variant.Jacard.150124
NANO-AntivirusTrojan.Win32.Delf.etfyhs
MicroWorld-eScanGen:Variant.Jacard.150124
TencentMalware.Win32.Gencirc.114923c1
Ad-AwareGen:Variant.Jacard.150124
SophosMal/Generic-S
ComodoMalware@#1ephu4rhqdi73
BitDefenderThetaAI:Packer.C6AD340A18
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionGenericRXCY-ZJ!B26460413D05
FireEyeGeneric.mg.b26460413d054f27
EmsisoftGen:Variant.Jacard.150124 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojanSpy.Stealer.aps
AviraHEUR/AGEN.1119540
eGambitUnsafe.AI_Score_100%
MicrosoftTrojan:Win32/Tnega!ml
GDataGen:Variant.Jacard.150124
McAfeeGenericRXCY-ZJ!B26460413D05
MAXmalware (ai score=99)
VBA32BScope.TrojanSpy.Stealer
PandaTrj/CI.A
RisingTrojan.Delf!8.67 (CLOUD)
YandexTrojan.Delf!JVHfIyPZd8o
IkarusTrojan.Win32.Delf
FortinetW32/Delf.AVQ!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Win32/Delf.AVQ virus?

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Download GridinSoft Anti-Malware

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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Delf.AVQ you can always ask me in the comments for getting help.

References

  1. GridinSoft Anti-Malware Review from HowToFix site:
  2. More information about GridinSoft products: