PUP.MSIL.BadJoke.XA

The detection of PUP.MSIL.BadJoke.XA on your system indicates the presence of a potentially unwanted program (PUP) that may be causing issues with your computer's performance and security. It is essential to understand the nature of this threat and take appropriate steps to remove it and prevent future infections.

What Is PUP.MSIL.BadJoke.XA?

PUP.MSIL.BadJoke.XA is a type of malware that is classified as a potentially unwanted program. This means that it is not necessarily a virus or a Trojan, but rather a program that may be installed on your system without your knowledge or consent. PUPs can be bundled with other software, downloaded from the internet, or installed through exploits. They often exhibit behaviors that are annoying, disruptive, or potentially harmful, such as displaying unwanted advertisements, collecting user data, or modifying system settings.

How PUP.MSIL.BadJoke.XA Operates

PUP.MSIL.BadJoke.XA operates by installing itself on your system and then executing its payload. This can happen through various means, such as when you download and install software from untrusted sources, click on malicious links, or open attachments from spam emails. Once installed, the PUP can start displaying unwanted ads, collecting user data, or performing other malicious activities. It may also attempt to evade detection by using techniques such as code obfuscation, anti-debugging, or sandbox evasion.

Symptoms of Infection

If your system is infected with PUP.MSIL.BadJoke.XA, you may notice various symptoms, such as unwanted pop-ups, slow system performance, or suspicious program installations. You may also experience issues with your web browser, such as unwanted toolbars, changed homepage settings, or redirected search results. In some cases, the PUP may also collect your personal data, such as browsing history, search queries, or login credentials, and transmit it to remote servers.

  • Unwanted advertisements or pop-ups
  • Slow system performance or crashes
  • Suspicious program installations or uninstallations
  • Changed web browser settings or behavior
  • Collection of personal data or transmission to remote servers

How to Remove PUP.MSIL.BadJoke.XA

  1. Boot your system in Safe Mode with Networking to prevent the PUP from loading and to allow for a more effective removal process.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove the PUP and any associated files or registry entries.
  3. Uninstall any suspicious programs or applications that may be related to the PUP, using the Windows Control Panel or other uninstallation tools.
  4. Reset your web browser settings to their default values, including Chrome, Firefox, and Edge, to remove any unwanted extensions, toolbars, or homepage settings.
  5. Reboot your system and perform another full scan to ensure that the PUP has been completely removed and that there are no remaining threats.

Conclusion

Removing PUP.MSIL.BadJoke.XA from your system requires a combination of technical knowledge, caution, and the right tools. By following the steps outlined above, you can effectively remove the PUP and prevent future infections. It is essential to remain vigilant and take proactive measures to protect your system, such as keeping your operating system and software up to date, using strong antivirus software, and avoiding suspicious downloads or links. By taking these precautions, you can help ensure the security and integrity of your system and protect yourself from the risks associated with PUPs and other types of malware.

Analysis Report

General information

Family Name: PUP.MSIL.BadJoke.XA
Signature status: No Signature

Known Samples

MD5: 6dd7ecf13f87fa885fede29cd4d31127
SHA1: b9e133331ebccc6e97b90205de3801502637ce86
SHA256: 50042ED8C6C60B2DD79A23BB6589F83CD6AC3971FBA798E6D2A580D3FEA8EBF2
File Size: 522.75 KB, 522752 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have security information
  • File is .NET application
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • 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)

Windows PE Version Information

Name Value
Assembly Version 1.0.0.0
File Description Kirurg remsaterd
File Version 1.0.0.0
Internal Name Kirurg remsaterd.exe
Legal Copyright Copyright © 2021
Original Filename Kirurg remsaterd.exe
Product Name Kirurg remsaterd
Product Version 1.0.0.0

File Traits

  • .NET
  • x86

Block Information

Total Blocks: 43
Potentially Malicious Blocks: 4
Whitelisted Blocks: 39
Unknown Blocks: 0

Visual Map

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x x x 0 0 x 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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Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtEnumerateKey
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  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationJobObject
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN
User Data Access
  • GetComputerNameEx
  • GetUserObjectInformation

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