Win32/Delf.NOG

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

What is Win32/Delf.NOG infection?

In this post you will certainly find regarding the meaning of Win32/Delf.NOG and its unfavorable influence on your computer. Such ransomware are a kind of malware that is clarified by on-line fraudulences to demand paying the ransom by a victim.

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Most of the cases, Win32/Delf.NOG ransomware will certainly advise its targets to launch funds move for the function of counteracting the modifications that the Trojan infection has actually presented to the victim’s tool.

Win32/Delf.NOG Summary

These adjustments can be as complies with:

  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Unconventionial language used in binary resources: Spanish (Modern);
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the victim’s disk drive — so the victim can no more make use of the data;
  • Preventing routine accessibility to the target’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.NOG

One of the most common networks whereby Win32/Delf.NOG Ransomware are injected are:

  • By methods of phishing emails;
  • As an effect of customer ending up on a source that organizes a malicious software application;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the victim’s computer or prevent the device from functioning in a correct manner – while additionally putting a ransom money note that discusses the requirement for the sufferers to effect the repayment for the objective of decrypting the papers or bring back the file system back to the preliminary condition. In the majority of instances, the ransom money note will certainly show up when the client reboots the PC after the system has actually currently been damaged.

Win32/Delf.NOG distribution networks.

In numerous corners of the globe, Win32/Delf.NOG expands by leaps and bounds. However, the ransom money notes and also methods of extorting the ransom amount might differ relying on specific regional (local) settings. The ransom money notes and methods of extorting the ransom amount may vary depending on specific regional (regional) settings.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software application.

    In particular locations, the Trojans typically wrongfully report having discovered some unlicensed applications allowed on the sufferer’s gadget. The sharp after that demands the user to pay the ransom.

    Faulty statements about unlawful web content.

    In nations where software program piracy is much less popular, this approach is not as reliable for the cyber frauds. Conversely, the Win32/Delf.NOG popup alert may wrongly declare to be originating from a law enforcement organization as well as will certainly report having located child porn or other illegal data on the gadget.

    Win32/Delf.NOG popup alert may falsely declare to be deriving from a regulation enforcement establishment and also will certainly report having located kid porn or other illegal data on the gadget. The alert will similarly include a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: EB2ED701
md5: 6763ea446e3a641c2a462abf3f0aa3b1
name: 6763EA446E3A641C2A462ABF3F0AA3B1.mlw
sha1: 9c26588ca291d45b992df795bb4260357206e539
sha256: 23ebf016547f01bf6c16a003a289ef152ce1d0a61f40834a1839a492a38fc9e8
sha512: de0b6e5d9460f7f8b31ad39bafc601d06fab5958e76b28b539999ace9f45b5569a66d633903fd3a442cacd2341106ce082017bf11505364de9940287420ca790
ssdeep: 6144:O3vpl78fVdXZZXWKYkw7tLcoaYwH4bkscUx7k2nq6czNCrwjcF6SQrT:yvplYfVdXZ2R5dBx3qNNawOA
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Delf.NOG also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
DrWebWin32.HLLW.Autoruner1.37312
CynetMalicious (score: 99)
ALYacTrojan.GenericKDV.994328
ZillyaTrojan.Blocker.Win32.13414
SangforTrojan.Win32.Save.a
Cybereasonmalicious.46e3a6
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/Delf.NOG
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Blocker.azsf
BitDefenderTrojan.GenericKDV.994328
NANO-AntivirusTrojan.Win32.Blocker.dwkxmy
MicroWorld-eScanTrojan.GenericKDV.994328
TencentWin32.Trojan.Blocker.Wopv
Ad-AwareTrojan.GenericKDV.994328
ComodoMalware@#cbr5517ww6nj
BitDefenderThetaGen:NN.ZelphiF.34688.yGW@a8wvFjI
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Worm.fh
FireEyeGeneric.mg.6763ea446e3a641c
EmsisoftTrojan.GenericKDV.994328 (B)
SentinelOneStatic AI – Suspicious PE
AviraTR/Agent.404480.21
eGambitTrojan.Generic
Antiy-AVLTrojan/Generic.ASMalwS.CBF95
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftTrojan:Win32/Comrerop
ArcabitTrojan.GenericV.DF2C18
AegisLabTrojan.Win32.Blocker.j!c
GDataTrojan.GenericKDV.994328
TACHYONRansom/W32.DP-Blocker.404480
AhnLab-V3Trojan/Win32.Blocker.C3502788
McAfeeArtemis!6763EA446E3A
MAXmalware (ai score=86)
VBA32Hoax.Blocker
PandaGeneric Malware
RisingRansom.Blocker!8.12A (CLOUD)
YandexTrojan.GenAsa!z4BsucDK300
IkarusTrojan-Dropper.Delf
MaxSecureTrojan.Malware.74572619.susgen
FortinetW32/Blocker.AZSF!tr
AVGWin32:Malware-gen

How to remove Win32/Delf.NOG 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 Win32/Delf.NOG 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.NOG 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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