Trojan:Win32/Foidan.B

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

What is Trojan:Win32/Foidan.B infection?

In this article you will certainly discover concerning the meaning of Trojan:Win32/Foidan.B as well as its adverse effect on your computer system. Such ransomware are a kind of malware that is clarified by on-line frauds to demand paying the ransom by a victim.

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Most of the instances, Trojan:Win32/Foidan.B ransomware will certainly instruct its victims to start funds transfer for the purpose of neutralizing the changes that the Trojan infection has presented to the sufferer’s tool.

Trojan:Win32/Foidan.B Summary

These modifications can be as follows:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • A process attempted to delay the analysis task.;
  • 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.
  • Code injection with CreateRemoteThread in a remote process;
  • 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 files situated on the victim’s hard disk — so the victim can no more use 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.

Trojan:Win32/Foidan.B

One of the most common networks where Trojan:Win32/Foidan.B are injected are:

  • By means of phishing emails;
  • As a consequence of customer winding up on a source that organizes a destructive software program;

As quickly as the Trojan is successfully infused, it will certainly either cipher the information on the victim’s computer or protect against the gadget from operating in an appropriate manner – while additionally putting a ransom note that mentions the demand for the victims to effect the payment for the objective of decrypting the documents or restoring the data system back to the first problem. In many instances, the ransom note will come up when the customer restarts the COMPUTER after the system has actually already been damaged.

Trojan:Win32/Foidan.B distribution networks.

In different corners of the world, Trojan:Win32/Foidan.B expands by leaps and bounds. However, the ransom money notes as well as methods of extorting the ransom amount might vary relying on particular neighborhood (regional) settings. The ransom notes and also tricks of extorting the ransom money amount might vary depending on specific local (regional) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software program.

    In certain areas, the Trojans often wrongfully report having actually spotted some unlicensed applications enabled on the target’s gadget. The alert then demands the user to pay the ransom.

    Faulty declarations about prohibited material.

    In nations where software application piracy is much less preferred, this technique is not as reliable for the cyber frauds. Additionally, the Trojan:Win32/Foidan.B popup alert might incorrectly assert to be stemming from a police institution and will certainly report having situated youngster porn or various other illegal information on the gadget.

    Trojan:Win32/Foidan.B popup alert may incorrectly assert to be acquiring from a legislation enforcement establishment and will report having situated youngster porn or other unlawful information on the tool. The alert will in a similar way have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: C4053E18
md5: 1c37d2049eafdea7111b1c83394a0a8b
name: 1C37D2049EAFDEA7111B1C83394A0A8B.mlw
sha1: ebdb802aa5e274d76252d65841100a1a021408d9
sha256: 0e696c4267401230e1e26b7d0a1470e7307a430b74248ef277bf94cc5645f751
sha512: 481de63319d67e8eb73a79bf1482b292a31682c55d7932840e5bcc8db9849607b939fac0ca179ab3cfdbd0b0ef8e227b7c88d2049f8ccdb84019a253660e8602
ssdeep: 1536:WJpJ8OODfr2L8GmLd4TYqlU4tk/9hhZW8siN9pmZviojD3:sNODsEp4TAZW8sApmZv1D3
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2013 RoopSoftware Dev
InternalName: LPV routecon
FileVersion: 3.1.0.2
CompanyName: RoopSoftware Dev
ProductName: LPV Runtime Context Route Controller (32-bit)
ProductVersion: 3.1.0.2
FileDescription: LPV Runtime Context Route Controller (32-bit)
OriginalFilename: lpv routecon
Translation: 0x0409 0x04b0

Trojan:Win32/Foidan.B also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusTrojan ( 0001140e1 )
DrWebTrojan.Inject1.36112
CynetMalicious (score: 100)
CAT-QuickHealTrojanPWS.Zbot.A5
CylanceUnsafe
ZillyaTrojan.Blocker.Win32.14119
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_80% (W)
AlibabaTrojan:Win32/Blocker.324eca33
K7GWTrojan ( 0001140e1 )
CyrenW32/Ransom.FNQA-0500
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.BUHD
APEXMalicious
AvastSf:Crypt-AX [Trj]
KasperskyTrojan-Ransom.Win32.Blocker.dpcs
NANO-AntivirusTrojan.Win32.Blocker.ebdilo
ViRobotTrojan.Win32.S.Agent.104960.AC
TencentWin32.Trojan.Inject.Auto
SophosTroj/Blocker-Y
ComodoMalware@#37qvovjp013nu
BitDefenderThetaGen:NN.ZexaF.34670.gq0@aGcqrjni
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_FOIDAN.AX
McAfee-GW-EditionGeneric-FAWS!1C37D2049EAF
FireEyeGeneric.mg.1c37d2049eafdea7
SentinelOneStatic AI – Suspicious PE
JiangminTrojan/Blocker.ieg
WebrootW32.Rogue.Gen
AviraHEUR/AGEN.1117292
eGambitUnsafe.AI_Score_92%
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftTrojan:Win32/Foidan.B
AegisLabTrojan.Win32.Blocker.j!c
ZoneAlarmTrojan-Ransom.Win32.Blocker.dpcs
TACHYONTrojan/W32.Blocker.104960.K
AhnLab-V3Trojan/Win32.Ransomlock.R96806
Acronissuspicious
McAfeeGeneric-FAWS!1C37D2049EAF
MAXmalware (ai score=100)
VBA32Hoax.Blocker
MalwarebytesSpyware.Zbot.ED
PandaTrj/Genetic.gen
TrendMicro-HouseCallTROJ_FOIDAN.AX
RisingRansom.Blocker!8.12A (CLOUD)
YandexTrojan.Blocker!FeMPnBkD1fo
IkarusTrojan.Win32.Nymaim
FortinetW32/Kryptik.XX!tr
AVGSf:Crypt-AX [Trj]
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Blocker.HwoCEpsA

How to remove Trojan:Win32/Foidan.B 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/Foidan.B 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/Foidan.B 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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