What is Trojan:Win32/Pynamer.B!rfn infection?

In this post you will certainly locate concerning the definition of Trojan:Win32/Pynamer.B!rfn and also its negative impact on your computer system. Such ransomware are a kind of malware that is elaborated by on-line frauds to require paying the ransom by a target.

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In the majority of the instances, Trojan:Win32/Pynamer.B!rfn virus will certainly advise its sufferers to initiate funds move for the purpose of counteracting the amendments that the Trojan infection has actually presented to the victim’s tool.

Trojan:Win32/Pynamer.B!rfn Summary

These adjustments 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 (inter-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.
  • Expresses interest in specific running processes;
  • 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.

  • 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.
  • Deletes its original binary from disk;
  • A process attempted to delay the analysis task by a long amount of time.;
  • 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;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the sufferer’s hard disk drive — so the sufferer can no longer use the information;
  • Preventing routine access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most typical networks where Trojan:Win32/Pynamer.B!rfn Ransomware Trojans are injected are:

  • By means of phishing emails;
  • As an effect of user winding up on a source that holds a harmful software;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the target’s PC or prevent the tool from functioning in a proper fashion – while also placing a ransom money note that discusses the requirement for the sufferers to impact the settlement for the function of decrypting the documents or restoring the documents system back to the initial problem. In most circumstances, the ransom note will certainly come up when the customer reboots the COMPUTER after the system has actually currently been harmed.

Trojan:Win32/Pynamer.B!rfn circulation networks.

In various edges of the globe, Trojan:Win32/Pynamer.B!rfn grows by jumps as well as bounds. Nonetheless, the ransom notes and methods of obtaining the ransom money amount might differ depending on specific neighborhood (regional) settings. The ransom money notes and tricks of obtaining the ransom money amount may vary depending on certain neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software program.

    In specific locations, the Trojans usually wrongfully report having actually found some unlicensed applications allowed on the victim’s tool. The alert after that requires the customer to pay the ransom.

    Faulty statements concerning illegal material.

    In nations where software application piracy is less popular, this approach is not as reliable for the cyber frauds. Additionally, the Trojan:Win32/Pynamer.B!rfn popup alert may incorrectly declare to be stemming from a law enforcement organization and will certainly report having located youngster porn or various other unlawful information on the gadget.

    Trojan:Win32/Pynamer.B!rfn popup alert might wrongly declare to be deriving from a regulation enforcement establishment and will certainly report having located youngster pornography or various other illegal data on the device. The alert will similarly contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 9B7C3584
md5: f267d07c82912e0222666aa2cdc4cbee
name: slot.exe
sha1: 630f7d9cbbb0af1a0d90502bc4be4dbc32b458de
sha256: 5c7f5813142029aa1a1326ebef5b7664ab93e0c6bb40cbb40bf9146556a783f3
sha512: 1ccfb880532191238f8a1da2448b83ba7128868431b65909bbc7ebfc29a87ab6bc1060ac56b736d769edb8d703b655f9d5fb13fd18bbc1257dfaba0a8d8bdc42
ssdeep: 3072:8nkoa1KCPowRKbP7L10uxE232hxeF6HGqZ:ekoaVHa9x32hxq8Go
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Pynamer.B!rfn also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.GenericKD.32603115
CAT-QuickHeal Ransom.Stop.MP4
ALYac Trojan.Agent.DelShad
Malwarebytes Trojan.MalPack.GS.Generic
Zillya Trojan.Kryptik.Win32.1827754
Sangfor Malware
K7AntiVirus Trojan ( 0055a0261 )
BitDefender Trojan.GenericKD.32603115
K7GW Trojan ( 0055a0261 )
TrendMicro TROJ_GEN.R015C0DJL19
BitDefenderTheta Gen:NN.ZexaF.33550.oC0@auu5ZOpi
Symantec Trojan.Gen.2
ESET-NOD32 a variant of Win32/Kryptik.GXMH
TrendMicro-HouseCall TROJ_GEN.R015C0DJL19
GData Trojan.GenericKD.32603115
Kaspersky Trojan.Win32.DelShad.ble
Alibaba Trojan:Win32/DelShad.745ae159
NANO-Antivirus Trojan.Win32.Kryptik.geemfv
AegisLab Trojan.Win32.Generic.4!c
APEX Malicious
Rising Downloader.Dofoil!8.322 (TFE:6:qFwI1sROWJO)
Ad-Aware Trojan.GenericKD.32603115
Sophos Mal/Generic-S
Comodo Malware@#20hnqzz5jvg3p
DrWeb Trojan.Siggen8.51557
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.PUPXDP.dt
Emsisoft Trojan.GenericKD.32603115 (B)
Cyren W32/Trojan.SEUR-1153
Jiangmin Trojan.DelShad.jg
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1045033
Antiy-AVL Trojan/Win32.SelfDel
Endgame malicious (high confidence)
Arcabit Trojan.Generic.D1F17BEB
AhnLab-V3 Trojan/Win32.MalPe.R295249
ZoneAlarm Trojan.Win32.DelShad.ble
Microsoft Trojan:Win32/Pynamer.B!rfn
Acronis suspicious
McAfee RDN/Generic.grp
MAX malware (ai score=100)
VBA32 BScope.Trojan.Chapak
Cylance Unsafe
Panda Trj/GdSda.A
Yandex Trojan.DelShad!
Ikarus Ransom.Win32.Shade
MaxSecure Trojan.Malware.7164915.susgen
Fortinet W32/GenKryptik.DVUI!tr
AVG Win32:PWSX-gen [Trj]
Avast Win32:PWSX-gen [Trj]
CrowdStrike win/malicious_confidence_80% (W)
Qihoo-360 HEUR/QVM10.2.A7F3.Malware.Gen

How to remove Trojan:Win32/Pynamer.B!rfn 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

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 Trojan:Win32/Pynamer.B!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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan:Win32/Pynamer.B!rfn you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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