Win32/Packed.Themida.BFL

What is Win32/Packed.Themida.BFL infection?

In this article you will certainly find concerning the definition of Win32/Packed.Themida.BFL and also its negative impact on your computer system. Such ransomware are a type of malware that is clarified by online fraudulences to demand paying the ransom by a sufferer.

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Most of the cases, Win32/Packed.Themida.BFL infection will certainly advise its victims to launch funds transfer for the objective of counteracting the amendments that the Trojan infection has actually introduced to the victim’s gadget.

Win32/Packed.Themida.BFL Summary

These modifications can be as complies with:

  • 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.
  • 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;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Detects Sandboxie through the presence of a library;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • The following process appear to have been packed with Themida: new.exe;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Likely virus infection of existing system binary;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Detects the presence of Wine emulator via registry key;
  • Checks the version of Bios, possibly for anti-virtualization;
  • Detects VirtualBox through the presence of a registry key;
  • 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 target’s disk drive — so the sufferer can no longer utilize the data;
  • Preventing routine access to the sufferer’s workstation;

Win32/Packed.Themida.BFL

One of the most normal networks through which Win32/Packed.Themida.BFL are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of individual ending up on a resource that holds a destructive software program;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the data on the victim’s PC or stop the device from functioning in a correct way – while likewise placing a ransom note that states the need for the victims to effect the settlement for the function of decrypting the documents or restoring the documents system back to the preliminary problem. In the majority of instances, the ransom note will certainly turn up when the customer reboots the PC after the system has actually currently been harmed.

Win32/Packed.Themida.BFL circulation channels.

In different edges of the globe, Win32/Packed.Themida.BFL grows by leaps and bounds. However, the ransom money notes and techniques of obtaining the ransom money amount might vary depending upon specific neighborhood (local) settings. The ransom money notes and also methods of obtaining the ransom money amount might differ depending on specific neighborhood (regional) setups.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software application.

    In certain areas, the Trojans commonly wrongfully report having spotted some unlicensed applications made it possible for on the sufferer’s tool. The alert then demands the individual to pay the ransom.

    Faulty declarations regarding unlawful content.

    In countries where software piracy is less popular, this method is not as effective for the cyber fraudulences. Additionally, the Win32/Packed.Themida.BFL popup alert might falsely declare to be stemming from a law enforcement institution and will report having located child pornography or other prohibited information on the device.

    Win32/Packed.Themida.BFL popup alert might wrongly declare to be deriving from a law enforcement institution and also will report having situated child pornography or various other illegal information on the gadget. The alert will in a similar way contain a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: F699C3D0
md5: 227c301f59c31208ab72c24a174f1e17
name: new.exe
sha1: f051adb24edaeb44374bbf12cf95dbfc351f590e
sha256: ee16f94cfd370950277cae29229f9bb61fd9493e831d961416d1b38fdb65c8c0
sha512: e1fa555d995e8eb7eb79f34cebb04d83adf32f23b2a57dc18518259f0ab1247a79b08e30aee20c31a04e09028d2a0a652f2ecb5415fa70d1f6345dae0fe56492
ssdeep: 98304:z1m0z2DrzRPZK7FxuaFcNUJ9O9bN/aVSyViUUj+oyX90p54/g5:z1p2Drzu7FsaGN9b5aVvi3j+oq848
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Packed.Themida.BFL also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.HfsAutoB.
MicroWorld-eScan Trojan.GenericKD.40460858
CAT-QuickHeal Trojan.IGENERIC
McAfee Artemis!227C301F59C3
Cylance Unsafe
K7GW Trojan ( 00539edf1 )
K7AntiVirus Trojan ( 00539edf1 )
TrendMicro TROJ_GEN.F0C2C00I918
Cyren W32/Trojan.PCCX-0625
Symantec ML.Attribute.HighConfidence
TrendMicro-HouseCall TROJ_GEN.F0C2C00I918
Paloalto generic.ml
GData Trojan.GenericKD.40460858
Kaspersky Trojan-Ransom.Win32.Encoder.mg
BitDefender Trojan.GenericKD.40460858
NANO-Antivirus Trojan.Win32.Encoder.fhrccc
Rising Ransom.Encoder!8.FFD4 (CLOUD)
Ad-Aware Trojan.GenericKD.40460858
Sophos Mal/Generic-S
Comodo .UnclassifiedMalware
F-Secure Trojan.GenericKD.40460858
DrWeb Trojan.Encoder.26259
Zillya Trojan.Encoder.Win32.145
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.PWSBanker.rc
Emsisoft Trojan.GenericKD.40460858 (B)
Ikarus Trojan.Win32.Themida
Avira TR/Encoder.bczip
Antiy-AVL Trojan/Win32.AGeneric
Endgame malicious (high confidence)
Arcabit Trojan.Generic.D269623A
ZoneAlarm Trojan-Ransom.Win32.Encoder.mg
Microsoft Trojan:Win32/Tiggre!rfn
TACHYON Ransom/W32.Encoder.4861952
AhnLab-V3 Malware/Win32.Generic.C2702626
ALYac Trojan.GenericKD.40460858
MAX malware (ai score=99)
VBA32 TrojanRansom.Encoder
Malwarebytes Ransom.Rapid
Panda Trj/CI.A
ESET-NOD32 a variant of Win32/Packed.Themida.BFL
Tencent Win32.Trojan.Encoder.Hpii
SentinelOne static engine – malicious
Fortinet W32/Generic!tr
AVG Win32:Malware-gen
Cybereason malicious.f59c31
Avast Win32:Malware-gen
CrowdStrike malicious_confidence_90% (D)
Qihoo-360 Win32/Trojan.Ransom.294

How to remove Win32/Packed.Themida.BFL 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 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.

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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/Packed.Themida.BFL 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/Packed.Themida.BFL 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/products/

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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