What is Win32/AutoRun.Delf.UM infection?

In this short article you will certainly discover concerning the meaning of Win32/AutoRun.Delf.UM and also its unfavorable effect on your computer system. Such ransomware are a kind of malware that is elaborated by on-line frauds to require paying the ransom by a victim.

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In the majority of the situations, Win32/AutoRun.Delf.UM ransomware will certainly advise its victims to initiate funds transfer for the purpose of neutralizing the modifications that the Trojan infection has actually introduced to the target’s device.

Win32/AutoRun.Delf.UM Summary

These alterations can be as follows:

  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Detects Avast Antivirus through the presence of a library;
  • Ciphering the documents situated on the sufferer’s hard disk — so the target can no more use the information;
  • Preventing regular accessibility to the target’s workstation;


One of the most regular channels through which Win32/AutoRun.Delf.UM Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As an effect of individual winding up on a source that holds a harmful software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the sufferer’s PC or protect against the gadget from functioning in an appropriate way – while additionally putting a ransom note that states the demand for the sufferers to impact the payment for the objective of decrypting the files or bring back the file system back to the first condition. In a lot of circumstances, the ransom money note will certainly turn up when the client restarts the PC after the system has currently been damaged.

Win32/AutoRun.Delf.UM circulation channels.

In various corners of the globe, Win32/AutoRun.Delf.UM grows by leaps and bounds. Nevertheless, the ransom notes and techniques of extorting the ransom money quantity may differ depending on certain regional (regional) settings. The ransom notes and also tricks of extorting the ransom amount may differ depending on specific regional (local) settings.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software.

    In particular areas, the Trojans typically wrongfully report having identified some unlicensed applications allowed on the sufferer’s gadget. The sharp then requires the user to pay the ransom money.

    Faulty statements concerning unlawful material.

    In nations where software application piracy is less preferred, this approach is not as reliable for the cyber fraudulences. Alternatively, the Win32/AutoRun.Delf.UM popup alert may falsely declare to be originating from a police establishment and also will certainly report having situated child pornography or various other illegal information on the gadget.

    Win32/AutoRun.Delf.UM popup alert might wrongly declare to be deriving from a regulation enforcement establishment and will report having situated youngster porn or other prohibited information on the device. The alert will likewise consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 888AA9C7
md5: ad68dacc4f65d700cb9ab4e661e5d896
name: AD68DACC4F65D700CB9AB4E661E5D896.mlw
sha1: b999850cfb7b4f5a2c7907ef8f17cff0a581c8d6
sha256: 81634930f522a7b4e701bcabda785b98803e7d7561abdbc68bf0997601d5ceb3
sha512: 107de42f0b74da7697c300540c582c79620366fde9e6d47905f3c17b5f8df9065251d370836b31c0e8dc06ddb473459d469d99653f3bc26b4ccda68636d57666
ssdeep: 6144:MTdudoL19UOCdt+wJkmJUsuSAfIld83n00hbPJP2z1MuUNnFvBYL7geSjGjcNBYl:MTBefzavS3u00FBe5HIFvBYL4Y/A2Pl
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

Translation: 0x0409 0x04e4

Win32/AutoRun.Delf.UM also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus P2PWorm ( 0050ae201 )
Elastic malicious (high confidence)
Cynet Malicious (score: 85)
Cylance Unsafe
Zillya Trojan.Foreign.Win32.2169
Sangfor Trojan.Win32.Save.a
Alibaba Trojan:Win32/Scarsi.7f383553
K7GW P2PWorm ( 0050ae201 )
Cybereason malicious.cfb7b4
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/AutoRun.Delf.UM
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Scarsi.gen
NANO-Antivirus Trojan.Win32.Ransom.ecqejd
ViRobot Trojan.Win32.A.Blocker.356026[UPX]
Tencent Malware.Win32.Gencirc.114d0d57
Sophos Mal/Generic-S
Comodo Malware@#cb2ve6l13qe7
BitDefenderTheta Gen:NN.ZelphiF.34628.zmNfaK4Ji8bi
McAfee-GW-Edition BehavesLike.Win32.Generic.gc
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.cqlec
Avira HEUR/AGEN.1104669
Microsoft Trojan:Win32/Toga!rfn
AegisLab Trojan.Win32.Generic.4!c
McAfee Artemis!AD68DACC4F65
MAX malware (ai score=99)
VBA32 Trojan.Toga
Malwarebytes Malware.Heuristic.1003
Panda Trj/CI.A
Rising Worm.Autorun!8.50 (CLOUD)
Yandex Trojan.Scarsi!0ZV1o4bj9mM
Ikarus Worm.Win32.AutoRun
Fortinet W32/Delf.UM!worm
AVG Win32:Malware-gen

How to remove Win32/AutoRun.Delf.UM 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.

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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.

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Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

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Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/AutoRun.Delf.UM 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?

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

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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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