Backdoor.Farfli

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

What is Backdoor.Farfli infection?

In this short article you will certainly locate regarding the definition of Backdoor.Farfli and its adverse influence on your computer. Such ransomware are a type of malware that is specified by on-line fraudulences to demand paying the ransom money by a sufferer.

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In the majority of the situations, Backdoor.Farfli ransomware will certainly instruct its sufferers to initiate funds move for the objective of counteracting the changes that the Trojan infection has actually introduced to the victim’s tool.

Backdoor.Farfli Summary

These adjustments can be as adheres to:

  • Attempts to connect to a dead IP:Port (1 unique times);
  • Possible date expiration check, exits too soon after checking local time;
  • Expresses interest in specific running processes;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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
  • Creates a copy of itself;
  • Ciphering the documents found on the sufferer’s hard disk — so the victim can no longer use the information;
  • Preventing routine access 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.
Similar behavior
Related domains
t.nxxxn.gaBehavesLike.Win32.Vundo.mc

Backdoor.Farfli

One of the most typical channels through which Backdoor.Farfli are injected are:

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

As soon as the Trojan is effectively injected, it will either cipher the information on the sufferer’s PC or stop the gadget from working in a proper fashion – while likewise placing a ransom note that mentions the demand for the sufferers to impact the payment for the objective of decrypting the records or recovering the documents system back to the initial problem. In a lot of instances, the ransom note will show up when the customer restarts the COMPUTER after the system has currently been damaged.

Backdoor.Farfli distribution channels.

In different edges of the world, Backdoor.Farfli grows by jumps as well as bounds. Nonetheless, the ransom money notes and techniques of obtaining the ransom amount may differ depending on certain local (local) settings. The ransom notes as well as tricks of obtaining the ransom quantity might vary depending on specific local (regional) settings.

Ransomware injection

As an example:

    Faulty signals about unlicensed software application.

    In particular areas, the Trojans typically wrongfully report having detected some unlicensed applications allowed on the sufferer’s tool. The sharp after that demands the user to pay the ransom money.

    Faulty statements about unlawful material.

    In countries where software program piracy is much less preferred, this approach is not as efficient for the cyber scams. Conversely, the Backdoor.Farfli popup alert might falsely declare to be deriving from a law enforcement institution and also will certainly report having located youngster pornography or various other illegal data on the gadget.

    Backdoor.Farfli popup alert might incorrectly claim to be obtaining from a law enforcement institution as well as will report having located kid porn or various other unlawful information on the tool. The alert will similarly include a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 15920A1C
md5: 099b5eb82dfaa84feb2ccc21b2cc0a37
name: SQLIOMDSD.exe
sha1: 73d70100bbed9a4f3a6a050a6f38132dddbebbd6
sha256: f3fe8cdc912023aee44d447a48fa498c4a51d47dd3bd599f8ee529c87f7564b9
sha512: e54b448876216f94e3cc5c02d8daff9e23dde37d2071b7a0191324b712ebbea7530f696bb1fd690d7cd5810e2c2c04f3ac5e829a53bfe3584932450d685ea652
ssdeep: 384:S/dxXkROvwuK76kNQexc+v2PVGsa1IJyGxsTKV9K2fId1F7vvxlLYe:S/v0wWzHc+v2Pssa1pGyTdF7Db
type: MS-DOS executable, MZ for MS-DOS

Version Info:

LegalCopyright: (C) 360.cn Inc. All Rights Reserved.
InternalName: 360DnsOpt
FileVersion: 1.0.0.1058
CompanyName: 360x4e92x8054x7f51x5b89x5168x4e2dx5fc3
ProductName: 360x5b89x5168x536bx58eb
ProductVersion: 1.0.0.1058
FileDescription: 360x5b89x5168x536bx58eb DNSx4f18x9009
OriginalFilename: 360DnsOpt.exe
Translation: 0x0804 0x04b0

Backdoor.Farfli also known as:

BkavW32.FarfliS9BR.Trojan
MicroWorld-eScanGenPack:Generic.Zegost.3.E594680F
FireEyeGeneric.mg.099b5eb82dfaa84f
CAT-QuickHealTrojan.GenericPMF.S7517963
McAfeeTrojan-INV
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforMalware
K7AntiVirusTrojan ( 004d57481 )
BitDefenderGenPack:Generic.Zegost.3.E594680F
K7GWTrojan ( 004d57481 )
Cybereasonmalicious.82dfaa
TrendMicroBKDR_ZEGOST.SM40
BitDefenderThetaAI:Packer.61EA0E2F1F
F-ProtW32/Farfli.BA.gen!Eldorado
ESET-NOD32Win32/Agent.QJH
BaiduWin32.Trojan.Agent.atj
TrendMicro-HouseCallBKDR_ZEGOST.SM40
AvastWin32:Dropper-ODE [Drp]
ClamAVWin.Malware.Zegost-6919579-0
GDataGenPack:Generic.Zegost.3.E594680F
KasperskyTrojan.Win32.Agent.xadaxg
RisingBackdoor.Farfli!8.B4 (RDMK:cmRtazpoM09m/abG5KasoNrpNyO8)
Endgamemalicious (high confidence)
EmsisoftGenPack:Generic.Zegost.3.E594680F (B)
ComodoTrojWare.Win32.PSW.GamePass.F@35ift2
F-SecureTrojan.TR/Crypt.XPACK.Gen
DrWebBackDoor.Spy.2436
ZillyaTrojan.Agent.Win32.1126264
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Vundo.mc
SentinelOneDFI – Malicious PE
Trapminemalicious.high.ml.score
CMCVirus.Win32.Sality!O
SophosMal/Behav-024
APEXMalicious
CyrenW32/Farfli.BA.gen!Eldorado
JiangminTrojan/Generic.bcjgw
WebrootW32.Malware.Mlpe
AviraTR/Crypt.XPACK.Gen
MicrosoftBackdoor:Win32/Zegost.CD!bit
ArcabitGenPack:Generic.Zegost.3.E594680F
AhnLab-V3Backdoor/Win32.RL_Zegost.R289802
ZoneAlarmTrojan.Win32.Agent.xadaxg
TACHYONBackdoor/W32.Farfli.22528.B
Acronissuspicious
VBA32BScope.Trojan.Agent
ALYacGenPack:Generic.Zegost.3.E594680F
MAXmalware (ai score=88)
Ad-AwareGenPack:Generic.Zegost.3.E594680F
MalwarebytesBackdoor.Farfli
PandaTrj/Genetic.gen
ZonerTrojan.Win32.68809
TencentMalware.Win32.Gencirc.10b0c2af
YandexBackdoor.Farfli!S9/WFy1iLOU
IkarusTrojan.Win32.Agent
FortinetW32/Agent.QJH!tr
AVGWin32:Dropper-ODE [Drp]
CrowdStrikewin/malicious_confidence_100% (W)
Qihoo-360HEUR/QVM18.1.AF9B.Malware.Gen

How to remove Backdoor.Farfli ransomware?

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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 install-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 Backdoor.Farfli 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 Backdoor.Farfli 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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