Sf:WNCryLdr-A [Trj]

Written by Robert Bailey

What is Sf:WNCryLdr-A [Trj] infection?

In this short article you will find concerning the interpretation of Sf:WNCryLdr-A [Trj] as well as its adverse effect on your computer system. Such ransomware are a type of malware that is specified by on the internet fraudulences to require paying the ransom by a victim.

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Most of the cases, Sf:WNCryLdr-A [Trj] virus will advise its targets to start funds transfer for the objective of reducing the effects of the changes that the Trojan infection has actually introduced to the victim’s gadget.

Sf:WNCryLdr-A [Trj] Summary

These adjustments can be as adheres to:

  • Injection with CreateRemoteThread in a remote process;
  • Creates RWX memory;
  • Attempts to connect to a dead IP:Port (457 unique times);
  • Reads data out of its own binary image;
  • A process created a hidden window;
  • Drops a binary and executes it;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Code injection with CreateRemoteThread in a remote process;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • Attempts to repeatedly call a single API many times in order to delay analysis time;
  • Installs itself for autorun at Windows startup;
  • Creates a hidden or system file;
  • EternalBlue behavior;
  • Attempts to modify proxy settings;
  • Generates some ICMP traffic;
  • Anomalous binary characteristics;
  • Ciphering the documents found on the sufferer’s hard disk — so the target can no more utilize the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Related domains:

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Sf:WNCryLdr-A [Trj]

The most normal channels through which Sf:WNCryLdr-A [Trj] are injected are:

  • By means of phishing e-mails;
  • As an effect of user winding up on a resource that holds a harmful software;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s PC or protect against the tool from working in a correct fashion – while additionally placing a ransom note that mentions the demand for the victims to effect the payment for the function of decrypting the records or recovering the file system back to the initial condition. In the majority of instances, the ransom money note will certainly turn up when the client reboots the PC after the system has currently been damaged.

Sf:WNCryLdr-A [Trj] distribution channels.

In various corners of the world, Sf:WNCryLdr-A [Trj] grows by leaps and also bounds. Nonetheless, the ransom notes and also techniques of obtaining the ransom amount might vary relying on specific local (local) settings. The ransom notes and methods of obtaining the ransom money amount might differ depending on particular regional (regional) settings.

Ransomware injection

For example:

    Faulty signals concerning unlicensed software.

    In specific areas, the Trojans commonly wrongfully report having actually found some unlicensed applications made it possible for on the sufferer’s device. The sharp after that requires the customer to pay the ransom.

    Faulty declarations about prohibited web content.

    In countries where software piracy is much less popular, this approach is not as reliable for the cyber fraudulences. Additionally, the Sf:WNCryLdr-A [Trj] popup alert might incorrectly claim to be deriving from a law enforcement establishment as well as will report having located youngster pornography or other unlawful data on the gadget.

    Sf:WNCryLdr-A [Trj] popup alert may incorrectly assert to be acquiring from a legislation enforcement establishment as well as will certainly report having situated youngster porn or other unlawful information on the tool. The alert will likewise have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 2C39E5F6
md5: c4368491ea9b06a65d7f7a0acbd48a14
name: tmp0dq4ooji
sha1: 0bb591386977aea54e5a0d0c09d46b5d11405229
sha256: 5bd4eb9b89287dc6c872c8b5ed34f02326fe1aa3d91fdd9024c7f1b25941db91
sha512: 03db5a2506bdf1891524b0821effc7281c701bdeb9121b2444a34cc14decba9c90f466621ead01c6b20c2e2a0a1244758097a2563f3caca3ff0ff377e115cf0d
ssdeep: 49152:HnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:HDqPoBhz1aRxcSUDk36SA
type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Sf:WNCryLdr-A [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware
MicroWorld-eScan Trojan.GenericKD.40267082
FireEye Generic.mg.c4368491ea9b06a6
CAT-QuickHeal Ransom.WannaCrypt.S1670344
McAfee GenericRXFL-OG!C4368491EA9B
Cylance Unsafe
Sangfor Malware
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 00557fc41 )
K7AntiVirus Trojan ( 00557fc41 )
Arcabit Trojan.Generic.D2666D4A
Invincea heuristic
BitDefenderTheta Gen:NN.ZedlaF.34100.@x5@aC0WZ7ei
F-Prot W32/S-2b52222d!Eldorado
Symantec Ransom.Wannacry
Baidu Win32.Worm.Rbot.a
APEX Malicious
ClamAV Win.Ransomware.WannaCry-6313787-0
Kaspersky Trojan-Ransom.Win32.Wanna.m
BitDefender Trojan.GenericKD.40267082
NANO-Antivirus Trojan.Win32.Wanna.epxkni
Avast Sf:WNCryLdr-A [Trj]
Tencent Trojan-Ransom.Win32.Wanna.m
Ad-Aware Trojan.GenericKD.40267082
Emsisoft Trojan.GenericKD.40267082 (B)
Comodo TrojWare.Win32.Ransom.WannaCry.AB@75ge5e
F-Secure Malware.W32/Virut.Gen
DrWeb Trojan.Encoder.11432
TrendMicro Ransom_WCRY.SMALYM
McAfee-GW-Edition BehavesLike.Win32.RansomWannaCry.tt
Trapmine malicious.high.ml.score
CMC Virus.Win32.Virut.1!O
Sophos Mal/Wanna-A
SentinelOne DFI – Malicious PE
Cyren W32/WannaCrypt.A.gen!Eldorado
Jiangmin Trojan.Wanna.k
eGambit Trojan.Generic
Avira W32/Virut.Gen
Antiy-AVL Trojan[Ransom]/Win32.Wanna
Microsoft Ransom:Win32/CVE-2017-0147.A
Endgame malicious (high confidence)
ViRobot Trojan.Win32.WannaCry.5267459
ZoneAlarm Trojan-Ransom.Win32.Wanna.m
GData Trojan.GenericKD.40267082
AhnLab-V3 Trojan/Win32.WannaCryptor.R200894
Acronis suspicious
VBA32 Hoax.Wanna
ALYac Trojan.GenericKD.40267082
MAX malware (ai score=86)
Malwarebytes Ransom.WannaCrypt
ESET-NOD32 Win32/Exploit.CVE-2017-0147.A
TrendMicro-HouseCall Ransom_WCRY.SMALYM
Rising Ransom.Wanna!8.E7B2 (TFE:dGZlOgUxA5JDnJz0dA)
Yandex Exploit.CVE-2017-0147!
Ikarus Exploit.CVE-2017-0147
MaxSecure Trojan-Ransom.Win32.Wanna.m
Fortinet W32/WannaCryptor.H!tr.ransom
Webroot W32.Trojan.Gen
AVG Sf:WNCryLdr-A [Trj]
Panda Trj/Genetic.gen
Qihoo-360 HEUR/QVM26.1.EB7D.Malware.Gen

How to remove Sf:WNCryLdr-A [Trj] virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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.

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 Sf:WNCryLdr-A [Trj] 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 Sf:WNCryLdr-A [Trj] 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: http://gridinsoft.com/products/

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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