PUP.NSIS.Downloader
The detection of PUP.NSIS.Downloader on your system indicates the presence of a potentially unwanted program (PUP) that may pose a risk to your computer's security and performance. It is essential to understand the nature of this threat and take immediate action to remove it. PUPs are software applications that are not necessarily malicious but can still cause problems, such as displaying unwanted advertisements, collecting user data without consent, or installing additional unwanted software.
Table of Contents
What Is PUP.NSIS.Downloader?
PUP.NSIS.Downloader is a type of PUP that uses the NSIS (Nullsoft Scriptable Install System) installer to download and install additional software on a user's computer. This type of PUP can be bundled with other software or downloaded from the internet, often without the user's knowledge or consent. PUP.NSIS.Downloader can install a variety of unwanted programs, including adware, toolbars, and other PUPs.
How PUP.NSIS.Downloader Operates
PUP.NSIS.Downloader typically operates by using the NSIS installer to download and install additional software on a user's computer. This can happen when a user installs a software application that is bundled with the PUP, or when a user downloads a software application from the internet that is infected with the PUP. Once installed, PUP.NSIS.Downloader can install additional unwanted software, display unwanted advertisements, or collect user data without consent.
Symptoms of Infection
Symptoms of a PUP.NSIS.Downloader infection can vary, but common signs include unwanted advertisements, new toolbars or browser extensions, and slow system performance. Users may also notice that their browser homepage or search engine has been changed without their consent. In some cases, users may experience pop-ups, redirects, or other unwanted behavior.
- Unwanted advertisements or pop-ups
- New toolbars or browser extensions
- Slow system performance
- Changed browser homepage or search engine
- Pop-ups or redirects
How to Remove PUP.NSIS.Downloader
- Boot your computer in Safe Mode with Networking to prevent the PUP from loading
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and remove any detected threats
- Uninstall any suspicious programs or software applications that may be related to the PUP
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings
- Reboot your computer and perform a follow-up scan to ensure that the PUP has been completely removed
Conclusion
Removing PUP.NSIS.Downloader from your system is crucial to prevent further damage and protect your personal data. By following the steps outlined above, you can effectively remove the PUP and restore your system to a safe and secure state. It is essential to be cautious when downloading software from the internet and to always read the terms and conditions before installing any application. Additionally, keeping your operating system and software up to date, as well as using a reputable anti-malware tool, can help prevent future infections.
Analysis Report
General information
| Family Name: | PUP.NSIS.Downloader |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
680abf2d3cd14691deff73788f9d6b68
SHA1:
cb90a24cf6fe0deb1acee8a05fe1e1d127f871fa
SHA256:
5F25D03A9D31D9CE80956A2FD7992642B903628770046560A0F95905FD2B3B14
File Size:
3.17 MB, 3174908 bytes
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MD5:
782c4ab169f0d0772e9bc2a35adbd767
SHA1:
8c1ef632bfb7a97a34bac9b4759267be03d5deff
SHA256:
67522C41E94E0F83CCC82DC97C7399181995AE311C5B2282A4716E89D4617700
File Size:
7.86 MB, 7864451 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 is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
Show More
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| c:\users\user\appdata\local\temp\nsj98af.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete |
| c:\users\user\appdata\local\temp\nsj994c.tmp\installoptions.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsj994c.tmp\iospecial.ini | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\nsj994c.tmp\iospecial.ini | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsj994c.tmp\modern-header.bmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsj994c.tmp\modern-wizard.bmp | Generic Write,Read Attributes |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Anti Debug |
|
| User Data Access |
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