Win32/Delf.ASX

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

What is Win32/Delf.ASX infection?

In this short article you will locate about the meaning of Win32/Delf.ASX and its unfavorable effect on your computer system. Such ransomware are a form of malware that is clarified by on-line frauds to require paying the ransom money by a sufferer.

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In the majority of the instances, Win32/Delf.ASX infection will certainly instruct its victims to initiate funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has actually introduced to the victim’s tool.

Win32/Delf.ASX Summary

These modifications can be as adheres to:

  • 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.
  • 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.
  • Unconventionial language used in binary resources: Danish;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the target’s hard disk — so the sufferer can no more use the information;
  • Preventing normal accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32/Delf.ASX

One of the most typical networks through which Win32/Delf.ASX Ransomware are infused are:

  • By means of phishing e-mails;
  • As an effect of individual winding up on a resource that organizes a destructive software program;

As quickly as the Trojan is effectively injected, it will either cipher the information on the sufferer’s computer or prevent the tool from functioning in a correct manner – while also placing a ransom money note that mentions the need for the sufferers to effect the payment for the objective of decrypting the papers or restoring the documents system back to the initial problem. In most circumstances, the ransom money note will show up when the client reboots the PC after the system has actually already been harmed.

Win32/Delf.ASX distribution channels.

In numerous edges of the globe, Win32/Delf.ASX grows by leaps as well as bounds. However, the ransom money notes as well as tricks of extorting the ransom money quantity might differ depending on specific local (regional) settings. The ransom money notes and also methods of obtaining the ransom quantity might vary depending on particular local (local) settings.

Ransomware injection

For example:

    Faulty signals about unlicensed software.

    In certain areas, the Trojans commonly wrongfully report having spotted some unlicensed applications made it possible for on the victim’s gadget. The alert then demands the customer to pay the ransom.

    Faulty statements about prohibited content.

    In countries where software piracy is less preferred, this approach is not as reliable for the cyber frauds. Alternatively, the Win32/Delf.ASX popup alert might incorrectly assert to be originating from a police establishment as well as will certainly report having situated youngster pornography or other illegal information on the device.

    Win32/Delf.ASX popup alert may falsely claim to be deriving from a regulation enforcement establishment and will report having situated kid pornography or other prohibited information on the gadget. The alert will in a similar way contain a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: E677C68C
md5: cfd03b8db763eeab79ab2925af411808
name: CFD03B8DB763EEAB79AB2925AF411808.mlw
sha1: 9cddc4813c1eb7d504ad49344d330190ab83a453
sha256: 935de28aed2787e20b3021bbd8e00847af84df6f16f20bd40720e1eb02c07b4c
sha512: 9a2c269855aedb59534c79e5a1fdc2a1800ba13c4aa021f962605d84d788d5d4d0a3ef44bfdec03df0a0e937850a2063c88bc3930fe475ceb4e04544b608f8b0
ssdeep: 6144:g0luPYVYVzEklvqx4zdPbrtQuaFDmOjfqSYdDOl8rI/KBD:g0QPYayGvqGPbrtnaFj50ynQ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Apple Inc. Copyright xa9.
FileVersion: 8.1.42.7
CompanyName: Apple Inc.
Comments: Slr Hathaway Somber Pesents Webisode
ProductName: Ecommerce Webstorm
Languages: English
ProductVersion: 8.1.42.7
FileDescription: Slr Hathaway Somber Pesents Webisode
Translation: 0x0406 0x04b0

Win32/Delf.ASX also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.Common.791FF76C
K7AntiVirus Trojan ( 005128031 )
Elastic malicious (high confidence)
DrWeb Trojan.Spambot.15075
MicroWorld-eScan Gen:Variant.Symmi.76861
ALYac Gen:Variant.Symmi.76861
Cylance Unsafe
Zillya Trojan.Foreign.Win32.56745
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
Alibaba Ransom:Win32/Foreign.35c856bb
K7GW Trojan ( 005128031 )
Cybereason malicious.db763e
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Delf.ASX
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Foreign.nojl
BitDefender Gen:Variant.Symmi.76861
NANO-Antivirus Trojan.Win32.Spambot.esngmp
Tencent Win32.Trojan.Foreign.Tdzc
Ad-Aware Gen:Variant.Symmi.76861
Sophos Mal/Generic-S
Comodo Malware@#3loy8jm2ppb0f
BitDefenderTheta Gen:NN.ZexaF.34608.xu0@a0JgHtdG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPLOCKY.SME
McAfee-GW-Edition BehavesLike.Win32.Emotet.fc
FireEye Generic.mg.cfd03b8db763eeab
Emsisoft Gen:Variant.Symmi.76861 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Trojan.GenKD
Avira HEUR/AGEN.1129223
eGambit Unsafe.AI_Score_98%
Microsoft Trojan:Win32/Azorult!ml
Arcabit Trojan.Symmi.D12C3D
AegisLab Trojan.Multi.Generic.4!c
GData Gen:Variant.Symmi.76861
AhnLab-V3 Win-Trojan/Sagecrypt.Gen
McAfee Generic.dur
MAX malware (ai score=100)
VBA32 Trojan-Ransom.Foreign
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_HPLOCKY.SME
Rising Ransom.Foreign!8.292 (CLOUD)
Yandex Trojan.Foreign!q1EfVR8Vb2o
Ikarus Trojan.Win32.CoinMiner
Fortinet W32/Delf.ASX!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Foreign.HwoCjI8A

How to remove Win32/Delf.ASX 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.ASX 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.ASX 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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