Trojan.MalPack.PK

Written by Robert Bailey

What is Trojan.MalPack.PK infection?

In this short article you will certainly discover about the interpretation of Trojan.MalPack.PK and its adverse effect on your computer system. Such ransomware are a kind of malware that is clarified by on-line fraudulences to demand paying the ransom money by a sufferer.

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Most of the situations, Trojan.MalPack.PK infection will certainly advise its sufferers to start funds move for the objective of counteracting the amendments that the Trojan infection has actually presented to the sufferer’s gadget.

Trojan.MalPack.PK Summary

These adjustments can be as adheres to:

  • 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.
  • 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: Spanish (Guatemala);
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Deletes its original binary from disk;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • Modifies boot configuration settings;
  • 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;
  • Writes a potential ransom message to disk;
  • Creates a copy of itself;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • 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 files located on the sufferer’s hard disk drive — so the target can no longer use the information;
  • Preventing regular 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.

Trojan.MalPack.PK

The most regular channels whereby Trojan.MalPack.PK are injected are:

  • By ways of phishing emails;
  • As a consequence of user ending up on a source that holds a harmful software program;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s PC or stop the device from operating in a correct manner – while also placing a ransom money note that mentions the demand for the victims to impact the settlement for the function of decrypting the records or restoring the file system back to the preliminary condition. In the majority of circumstances, the ransom note will certainly turn up when the customer restarts the PC after the system has currently been damaged.

Trojan.MalPack.PK distribution channels.

In numerous edges of the world, Trojan.MalPack.PK expands by leaps and bounds. Nonetheless, the ransom notes and also tricks of obtaining the ransom quantity may differ depending upon certain neighborhood (local) setups. The ransom money notes as well as methods of obtaining the ransom quantity may vary depending on specific regional (local) settings.

Ransomware injection

For example:

    Faulty notifies concerning unlicensed software.

    In specific areas, the Trojans often wrongfully report having discovered some unlicensed applications enabled on the sufferer’s gadget. The alert after that requires the customer to pay the ransom.

    Faulty statements concerning prohibited content.

    In nations where software application piracy is less preferred, this technique is not as reliable for the cyber fraudulences. Alternatively, the Trojan.MalPack.PK popup alert may incorrectly claim to be deriving from a police organization and also will report having situated child pornography or various other illegal information on the gadget.

    Trojan.MalPack.PK popup alert may wrongly assert to be deriving from a law enforcement establishment and will certainly report having located youngster pornography or various other prohibited information on the tool. The alert will in a similar way include a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 51C1E979
md5: 4f4129402f767b9d5c6e1874fb46e78f
name: 4F4129402F767B9D5C6E1874FB46E78F.mlw
sha1: e8716aaf045353bfeefeeac6a14a8e4426026724
sha256: 53cfcb75c1bdc0ddad4382c46fbf5453061b0ba882e3bf6489e8064e3b07d1b7
sha512: 674add0455f5b8121e28bed77f09f03a483aae6cd6dd7fedf88c938802adb0a9d280e00e1ca55cd516ee9607ff848aa5c40b7e27ed4a0f701f2cb57fbef06a9a
ssdeep: 12288:0PNSR59sWw/uMcdB/Zp1JhO3lx2EihoZI:0VS39spsN71Jw3lG7
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.MalPack.PK also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.FamVT.RazyNHmC.Trojan
K7AntiVirus Trojan ( 004ddc881 )
Elastic malicious (high confidence)
DrWeb Trojan.Inject1.56622
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Crowti.WR7
ALYac Trojan.Ransom.TeslaCrypt
Cylance Unsafe
Zillya Trojan.Bitman.Win32.922
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Tescrypt.c91ad68c
K7GW Trojan ( 004ddc881 )
Cybereason malicious.02f767
Baidu Win32.Trojan.Kryptik.vz
Cyren W32/Agent.XL.gen!Eldorado
Symantec Ransom.TeslaCrypt!g2
ESET-NOD32 a variant of Win32/Kryptik.ENJD
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Packed.Cryptowall-6917358-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.CryptoWall.3
NANO-Antivirus Trojan.Win32.Bitman.ecgnhm
ViRobot Trojan.Win32.Kryptik.Gen.A
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
MicroWorld-eScan Gen:Heur.CryptoWall.3
Tencent Malware.Win32.Gencirc.10c31dc7
Ad-Aware Gen:Heur.CryptoWall.3
Sophos Mal/Generic-R + Mal/Wonton-BZ
Comodo TrojWare.Win32.Ransom.Tescrypt.BV@6n66vb
BitDefenderTheta Gen:NN.ZexaF.34628.AuW@aKvt8LSe
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYPTESLA.SMA5
McAfee-GW-Edition BackDoor-FDCH!4F4129402F76
FireEye Generic.mg.4f4129402f767b9d
Emsisoft Gen:Heur.CryptoWall.3 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Backdoor.Farfli.no
Webroot W32.Adware.Gen
Avira HEUR/AGEN.1105588
eGambit Generic.Malware
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/Tescrypt.D
Arcabit Trojan.CryptoWall.3
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Heur.CryptoWall.3
AhnLab-V3 Malware/Win32.RL_Ransom_cryptesla.R356406
Acronis suspicious
McAfee BackDoor-FDCH!4F4129402F76
MAX malware (ai score=100)
VBA32 BScope.Trojan.Inject
Malwarebytes Trojan.MalPack.PK
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CRYPTESLA.SMA5
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Yandex Trojan.GenAsa!e3yQ24QSdyw
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.ENZR!tr
AVG Win32:Trojan-gen
Qihoo-360 Win32/Trojan.Generic.HykCO7UA

How to remove Trojan.MalPack.PK 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 Trojan.MalPack.PK 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.MalPack.PK 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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