Threat Database Trojans Trojan.Malpack.JB

Trojan.Malpack.JB

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 3
Threat Level: 80 % (High)
Infected Computers: 98,829
First Seen: December 6, 2012
Last Seen: July 20, 2026
OS(es) Affected: Windows

The detection of Trojan.Malpack.JB on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the integrity of your computer, potentially leading to unauthorized access, data theft, and other malicious activities. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.

What Is Trojan.Malpack.JB?

Trojan.Malpack.JB is a type of Trojan malware, which is a broad category of malicious software that disguises itself as legitimate programs or files. Trojans are often used to gain unauthorized access to a computer system, allowing attackers to steal sensitive information, install additional malware, or disrupt system operations. The specific characteristics and behaviors of Trojan.Malpack.JB may vary, but its primary goal is to compromise the security and integrity of the infected system.

How Trojan.Malpack.JB Operates

Trojan.Malpack.JB, like other Trojans, typically operates by exploiting vulnerabilities in software or tricking users into installing it. Once inside a system, it can create backdoors for remote access, download and install additional malware, or engage in other malicious activities. The exact mechanisms used by Trojan.Malpack.JB can depend on its specific design and the intentions of its creators, but the overall impact is to undermine the security and stability of the infected computer.

Symptoms of Infection

Identifying a Trojan.Malpack.JB infection can be challenging, as it may not always exhibit obvious symptoms. However, signs of a potential infection include unusual system behavior, such as unexpected crashes, slow performance, or unfamiliar programs and icons. Additionally, increased network activity without a clear cause, pop-ups, or other unexpected changes to system settings can indicate the presence of malware. It is crucial to monitor system activity closely and run regular security scans to detect and address potential threats early.

How to Remove Trojan.Malpack.JB

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove all components of the Trojan.Malpack.JB malware.
  3. Manually uninstall any suspicious programs or applications that were installed around the time of the infection. Be cautious and only remove programs you are certain are malicious or unnecessary.
  4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes made by the malware.
  5. After completing the above steps, reboot your computer and perform another full scan with your anti-malware tool to ensure that all remnants of the malware have been removed.

Conclusion

The removal of Trojan.Malpack.JB requires a combination of technical knowledge and the right tools. By following the steps outlined above and maintaining vigilant security practices, you can effectively remove this malware and protect your system against future threats. Regularly updating your operating system, applications, and security software, as well as being cautious with emails, downloads, and website visits, are crucial in preventing malware infections. Remember, proactive security measures are the best defense against cyber threats like Trojan.Malpack.JB.

Analysis Report

General information

Family Name: Trojan.Malpack.JB
Signature status: No Signature

Known Samples

MD5: efdc2f1656529a11b54493f4165703c8
SHA1: cfe98a030a90cd4abe316d9fc748dd7c23c2f0ef
SHA256: 72F595912F4265E6BC1A3E00E79619B09A8454F635257F0106487925C19E92F0
File Size: 5.33 MB, 5325824 bytes
MD5: 94bfb3ecd579e9e0476dbcc3a95fceb7
SHA1: c573f5a3508fc692f7dd14c2bd21b4d754752f15
SHA256: B0181A9177B69367DDCD25F05E3C524CD698E26921C518C795409A0DE6FB4E1C
File Size: 4.61 MB, 4607285 bytes
MD5: 843256681cdc787072fb7f0a8cfe9782
SHA1: fdee8f44ab157ede364020d8542d26bfc172fc91
SHA256: E131EBCF5B4B00934804AC546239447095BA14BB65C1BBE6EE10EF31FC12101C
File Size: 6.27 MB, 6265344 bytes
MD5: 6d7e0341d7d3a9cfb93133b22635cfdf
SHA1: db127427af8ef6ccbb45e14919c2c17d156e2fd4
SHA256: 672689D12AC963B99957C7A6EF918FC43A90644CB3A85C08CB8E0E289E18840B
File Size: 1.97 MB, 1967484 bytes
MD5: a671f76b27ca91ed23f06d67b4f50456
SHA1: de6c749485ef34aa0911bfb980fefa4d0a18cc9c
SHA256: B6224CF62439FC6D2626615D683015FCD199D242A0FCBD5F6C96C0726FFACA23
File Size: 710.66 KB, 710656 bytes
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MD5: cf6fdea310a6142bbb0b2a0c2fe049ed
SHA1: 91ff444988c234dffa0847fa01cd9fcd2249cae2
SHA256: 2EBF3A7D1A139AB2DECE88057BE7A550FD9FBE607983AC138C03F713F4587FA3
File Size: 229.38 KB, 229376 bytes
MD5: 9ba6ec5f543a20f54bb3d6abc0a1b5a7
SHA1: e89c84af0dec026b930f1d0c79ee6e06d7c2a3d1
SHA256: 40A08E6CD53339C7C9052298C9EEC6C7D1F4FC1CE094593F5A37C2F92F2E3338
File Size: 3.38 MB, 3379674 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have relocations information
  • File doesn't have security information
  • File has TLS information
  • File is 32-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
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  • File is Native application (NOT .NET application)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

Windows PE Version Information

Name Value
Comments
  • Self Extractable Archive by EXEpress CX Copyright(C) 1998-2012 Web Technology Corp. http://www.webtech.co.jp/
  • Self Extractable Archive by EXEpress CX Copyright(C) 1998-2014 Web Technology Corp. http://www.webtech.co.jp/
  • Todos os direitos reservados. Proibido o uso ou reprodução sem a licença do autor.
Company Name
  • Foxit Corporation
  • Microsoft
  • Playlist Soluções Ltda.
File Description
  • Foxit Updater
  • Playlist Digital.
  • Universal Updater
  • 自己解凍実行ファイル
File Version
  • 8.3.1.531
  • 5.26.00
  • 5.24.00
  • 5.0.5.06
  • 1.05.22.0
  • 1.00
Internal Name
  • EPSFX
  • Foxit Updater
  • Playlist Digital
  • Win
Legal Copyright
  • Copyright © 1995-2012 - Playlist Soluções Ltda.
  • Copyright © 2004-2017 Foxit Software Inc. All Rights Reserved.
  • Universal Updater © 2015
Original Filename
  • EPSFX.EXE
  • Foxit Updater.EXE
  • Playlist.exe
  • Win.exe
Product Name
  • Foxit Updater
  • Playlist Digital
  • Universal Updater
  • Win
Product Version
  • 8.3.1.531
  • 5.26.00
  • 5.24.00
  • 5.0.5.06
  • 1.05.22.0
  • 1.00

File Traits

  • 2+ executable sections
  • big overlay
  • CAB (In Overlay)
  • HighEntropy
  • imgui
  • No Version Info
  • vb6
  • x86

Block Information

Total Blocks: 628
Potentially Malicious Blocks: 133
Whitelisted Blocks: 490
Unknown Blocks: 5

Visual Map

0 x 0 x x x x 0 x x x x 0 0 0 0 0 0 0 0 0 0 x 0 0 0 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 0 0 0 0 0 0 x 0 0 0 0 0 0 0 0 x x x x x x x x x x x 0 x x x x 0 x x x x x x x 0 x x 0 x x x x x x 0 x 0 0 0 0 0 0 x x x x x 0 x x x x x 0 x 0 x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x x x x 0 x x x 1 ? x x 0 ? ? x x x x x x x x 0 x 0 x x x x x x x x 0 x x x x x 0 x x x x x x x x x 0 x x x x x x x ? ? x x x 0 x 0 x x x x x x 0 0 0 x x 0 x x x 0 0 0 0 x x x x x x x x x 0 x x x x 0 0 0 0 0 0 x 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

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Files Modified

File Attributes
c:\users\user\downloads\de6c749485ef34aa0911bfb980fefa4d0a18cc9c_0000710656.log Generic Write,Read Attributes
c:\users\user\downloads\eventos\22-02-2026.log Generic Write,Read Attributes
c:\users\user\log\bl200.log Generic Read,Write Data,Write Attributes,Write extended,Append data

Registry Modifications

Key::Value Data API Name
HKCU\software\playlist software\playlist digital\config::language PT_BR RegNtPreCreateKey

Windows API Usage

Category API
Other Suspicious
  • SetWindowsHookEx
User Data Access
  • GetComputerName
  • GetUserObjectInformation
Anti Debug
  • IsDebuggerPresent
Network Winsock2
  • WSAStartup
  • WSAttemptAutodialName
Network Winsock
  • connect
  • freeaddrinfo
  • getaddrinfo
  • send
  • socket
Service Control
  • StartServiceCtrlDispatcher

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