Trojan:Win32/Sonoko.A!rfn

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

What is Trojan:Win32/Sonoko.A!rfn infection?

In this post you will certainly locate concerning the meaning of Trojan:Win32/Sonoko.A!rfn and its negative influence on your computer. Such ransomware are a form of malware that is clarified by on-line scams to require paying the ransom money by a sufferer.

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In the majority of the instances, Trojan:Win32/Sonoko.A!rfn virus will certainly advise its sufferers to initiate funds transfer for the purpose of counteracting the changes that the Trojan infection has introduced to the target’s device.

Trojan:Win32/Sonoko.A!rfn Summary

These alterations can be as adheres to:

  • Executable code extraction;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • Creates RWX memory;
  • The binary likely contains encrypted or compressed data.;
  • The executable is compressed using UPX;
  • Attempts to repeatedly call a single API many times in order to delay analysis time;
  • Steals private information from local Internet browsers;
  • Spoofs its process name and/or associated pathname to appear as a legitimate process;
  • Harvests credentials from local FTP client softwares;
  • Harvests information related to installed instant messenger clients;
  • Harvests information related to installed mail clients;
  • Collects information to fingerprint the system;
  • Ciphering the records located on the target’s disk drive — so the target can no more utilize the information;
  • Preventing routine access to the target’s workstation;

Trojan:Win32/Sonoko.A!rfn

The most common channels through which Trojan:Win32/Sonoko.A!rfn are injected are:

  • By means of phishing e-mails;
  • As an effect of user ending up on a resource that hosts a malicious software;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s PC or avoid the gadget from operating in an appropriate way – while additionally placing a ransom note that mentions the need for the sufferers to impact the repayment for the purpose of decrypting the papers or restoring the data system back to the initial condition. In a lot of instances, the ransom note will turn up when the customer restarts the PC after the system has actually already been harmed.

Trojan:Win32/Sonoko.A!rfn distribution channels.

In numerous edges of the globe, Trojan:Win32/Sonoko.A!rfn grows by jumps and bounds. However, the ransom money notes as well as tricks of extorting the ransom money amount might differ depending upon specific regional (local) settings. The ransom notes and also methods of extorting the ransom money quantity might differ depending on specific local (local) settings.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software program.

    In certain locations, the Trojans often wrongfully report having found some unlicensed applications made it possible for on the victim’s device. The sharp after that requires the customer to pay the ransom.

    Faulty declarations concerning illegal web content.

    In nations where software program piracy is much less prominent, this technique is not as efficient for the cyber frauds. Alternatively, the Trojan:Win32/Sonoko.A!rfn popup alert might wrongly declare to be stemming from a police organization as well as will report having located child porn or various other prohibited data on the tool.

    Trojan:Win32/Sonoko.A!rfn popup alert might incorrectly claim to be obtaining from a law enforcement organization as well as will certainly report having located kid pornography or various other illegal information on the gadget. The alert will similarly have a need for the individual to pay the ransom.

Technical details

File Info:

crc32: C67EC677
md5: fad4815c5b9d58964d77660562e64f2c
name: FAD4815C5B9D58964D77660562E64F2C.mlw
sha1: a141a96e177d947e6c7dea52b381b61393465c8b
sha256: 08ceb7d69f7a6ce39616eb9f508a585656c90d1d07dc88d4c86be739c51eee4e
sha512: fe2c656eafc6005889c9166dd028c02b42c3ab4ef1424ae4f199284e471a17067e5a9c8b63364b647a0d00ba7bfd9d7d6f982ed49ddd0ae59794ae5a90c698ad
ssdeep: 12288:EBoS8tC2DYk/60kE8WQg5oSMWxu9k8mRBT311nz:0CC5SNkEEWUJmnlBz
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyright xa9Instacart 2016 All rights reserved.
InternalName: Besides
FileVersion: 2.4.2.4
CompanyName: Instacart
FileDescription: Mjr Hardings
LegalTrademarks: Copyright xa9Instacart 2016 All rights reserved.
Comments: Mjr Hardings
ProductName: Besides
ProductVersion: 2.4.2.4
PrivateBuild: 2.4.2.4
OriginalFilename: Besides
Translation: 0x0409 0x04b0

Trojan:Win32/Sonoko.A!rfn also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Stealer.23680
ALYac Gen:Variant.Ransom.Scarab.43
Cylance Unsafe
Zillya Trojan.GenericKD.Win32.130151
Sangfor Trojan.Win32.Yakes.wudg
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Trojan:Win32/Yakes.9de32bf7
K7GW Trojan ( 00537eba1 )
K7AntiVirus Trojan ( 00537eba1 )
Symantec Trojan Horse
ESET-NOD32 a variant of Win32/Kryptik.GIWU
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 99)
Kaspersky Trojan.Win32.Yakes.wudg
BitDefender Gen:Variant.Ransom.Scarab.43
NANO-Antivirus Trojan.Win32.Yakes.ffkwha
MicroWorld-eScan Gen:Variant.Ransom.Scarab.43
Tencent Malware.Win32.Gencirc.114d4d9f
Ad-Aware Gen:Variant.Ransom.Scarab.43
Sophos Mal/Generic-S
Comodo Malware@#2fiyn4eh2ljcn
BitDefenderTheta Gen:NN.ZexaF.34088.ymLfaK@HJbgi
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.TrojanAitInject.fc
FireEye Generic.mg.fad4815c5b9d5896
Emsisoft Gen:Variant.Ransom.Scarab.43 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Yakes.aaho
Avira HEUR/AGEN.1120572
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.2805905
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Sonoko.A!rfn
ZoneAlarm Trojan.Win32.Yakes.wudg
GData Gen:Variant.Ransom.Scarab.43
AhnLab-V3 Malware/Win32.Generic.C2621889
McAfee Generic.dwc
MAX malware (ai score=96)
VBA32 Trojan.Yakes
Panda Trj/CI.A
Yandex Trojan.Yakes!kasAUYwezHk
Ikarus Trojan.Win32.Crypt
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.GIWU!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Botnet.Yakes.HwsBXL8A

How to remove Trojan:Win32/Sonoko.A!rfn 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 Trojan:Win32/Sonoko.A!rfn 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 Trojan:Win32/Sonoko.A!rfn 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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