Win32/Pterodo.FG

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

What is Win32/Pterodo.FG infection?

In this post you will certainly find regarding the meaning of Win32/Pterodo.FG and its adverse influence on your computer. Such ransomware are a form of malware that is elaborated by on-line frauds to demand paying the ransom money by a sufferer.

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Most of the situations, Win32/Pterodo.FG infection will instruct its sufferers to start funds transfer for the objective of counteracting the changes that the Trojan infection has presented to the target’s device.

Win32/Pterodo.FG Summary

These alterations can be as follows:

  • At least one process apparently crashed during execution;
  • 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.;
  • 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.

  • A process created a hidden window;
  • 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 language used in binary resources: Russian;
  • Uses Windows utilities for basic functionality;
  • 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
  • Checks the system manufacturer, likely for anti-virtualization;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents found on the victim’s hard disk — so the target can no more make use of the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Win32/Pterodo.FG

One of the most regular channels through which Win32/Pterodo.FG Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As an effect of customer winding up on a resource that hosts a destructive software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the target’s computer or avoid the device from operating in a proper manner – while likewise placing a ransom money note that mentions the demand for the sufferers to effect the payment for the function of decrypting the documents or recovering the file system back to the initial condition. In many instances, the ransom money note will come up when the customer restarts the COMPUTER after the system has already been harmed.

Win32/Pterodo.FG circulation channels.

In different corners of the world, Win32/Pterodo.FG expands by jumps as well as bounds. Nonetheless, the ransom notes as well as tricks of extorting the ransom money amount might vary depending on specific local (regional) setups. The ransom money notes and also tricks of extorting the ransom money quantity might vary depending on specific neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software application.

    In certain locations, the Trojans commonly wrongfully report having detected some unlicensed applications made it possible for on the victim’s tool. The alert then requires the individual to pay the ransom money.

    Faulty declarations concerning prohibited web content.

    In nations where software program piracy is much less popular, this approach is not as reliable for the cyber frauds. Additionally, the Win32/Pterodo.FG popup alert might wrongly assert to be deriving from a police institution and will certainly report having situated kid porn or other illegal information on the gadget.

    Win32/Pterodo.FG popup alert might falsely declare to be acquiring from a legislation enforcement organization and will certainly report having located youngster porn or other illegal data on the device. The alert will in a similar way consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 9A350253
md5: eb024b47d3ca9a8050cc2c143ad8c2d3
name: EB024B47D3CA9A8050CC2C143AD8C2D3.mlw
sha1: c576bf3f9300402716ab21ac70527103a1853910
sha256: 7b9d56987321ed40b3b9ed3d1dd74326518ac7a5979c14d84ab834189938bade
sha512: 038ad4f7098388b1a53518a7463bef1e77cb7a35b839b89bcc247d57f3e4837ecb6ef7facad09615f40a719ccb2e95b444f96dd40bc80ad10a3050ef46bfb78f
ssdeep: 6144:STDFesBeauIbOJnFXKtYnt6CriycAhyc1TRLTHQOrRezFWuRwIDnJs3GOEOmD:2DcsBe3IbObKtsNnyc1RXwOrReFWQF3D
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 2005-2010 Oleg N. Scherbakov
InternalName: 7ZSfxMod
FileVersion: 1.4.2.2308
CompanyName: Oleg N. Scherbakov
PrivateBuild: November 22, 2011
ProductName: 7-Zip SFX
ProductVersion: 1.4.2.2308
FileDescription: 7z Setup SFX (x86)
OriginalFilename: 7ZSfxMod_x86.exe
Translation: 0x0000 0x04b0

Win32/Pterodo.FG also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 0053eee91 )
CynetMalicious (score: 85)
ALYacGen:Variant.Ursu.247759
CylanceUnsafe
ZillyaDropper.Gamaredon.Win32.34
SangforRansom.Win32.Xiaoba_9.se
K7GWTrojan ( 0053eee91 )
Cybereasonmalicious.7d3ca9
CyrenW32/Trojan.ORJT-3199
SymantecTrojan.Gen.2
ESET-NOD32Win32/Pterodo.FG
APEXMalicious
AvastFileRepMalware
BitDefenderGen:Variant.Ursu.247759
NANO-AntivirusTrojan.Win32.Pterodo.ffaada
MicroWorld-eScanGen:Variant.Ursu.247759
TencentWin32.Trojan.Ursu.Ajla
SophosMal/Generic-S
BitDefenderThetaGen:NN.ZedlaF.34608.hu4@aipS1Lc
McAfee-GW-EditionBehavesLike.Win32.Dropper.fh
FireEyeGeneric.mg.eb024b47d3ca9a80
EmsisoftGen:Variant.Ursu.247759 (B)
AviraTR/Pterodo.ppeuf
MicrosoftTrojan:Win32/Vigorf.A
GDataGen:Variant.Ursu.247759
McAfeeArtemis!EB024B47D3CA
MAXmalware (ai score=97)
VBA32Trojan.Tiggre
PandaTrj/CI.A
RisingTrojan.Pterodo!8.E528 (CLOUD)
IkarusTrojan.Win32.Pterodo
FortinetW32/Pterodo.FG!tr
AVGFileRepMalware
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.526

How to remove Win32/Pterodo.FG 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.

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 Win32/Pterodo.FG 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 Win32/Pterodo.FG 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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