PUP.Keygen.KD
PUP.Keygen.KD is a detection name used to flag files associated with key generators, also known as "keygens" - small utilities that claim to produce working activation codes or license keys for commercial software. Security tools classify this detection under the broader umbrella of Potentially Unwanted Programs (PUPs), meaning the file itself may not always be outright malicious, but it is risky, unwanted, or frequently abused to deliver harmful payloads. Because keygens are tied to software piracy, they are a common vector that cybercriminals exploit to distribute additional threats.
Table of Contents
What PUP.Keygen.KD Does
Programs flagged as PUP.Keygen.KD are typically designed to generate fake or stolen serial numbers, license keys, or activation codes for commercial software, allowing users to bypass legitimate purchase and licensing requirements. While the tool may appear to function as advertised, in practice many keygens in this category are repackaged or modified by third parties to include hidden components. These can range from adware and browser hijackers to more dangerous payloads such as trojans, spyware, or ransomware. Because keygens inherently require users to disable or ignore security warnings to run them, they create an ideal cover for attackers to slip in unwanted or malicious code without raising immediate suspicion.
How It Usually Gets Onto Computers
Keygen tools flagged under this detection name are typically downloaded from torrent sites, file-sharing networks, software cracking forums, and other unofficial download sources. Users searching for free access to paid software often encounter these tools bundled inside compressed archives, sometimes alongside "cracks" or "patches" that claim to unlock full software functionality. As is typical for this category of threat, the installation process often requires users to manually disable antivirus protection or approve security exceptions, which attackers exploit to install additional unwanted software alongside the keygen itself.
Risks for the User
Running a tool detected as PUP.Keygen.KD carries several risks. Beyond the legal and ethical issues of using pirated activation methods, users risk exposing their systems to bundled malware that can compromise personal data, track browsing habits, display intrusive advertisements, or open backdoors for further infections. Typical risks associated with this category include system slowdowns, unwanted toolbar installations, redirected web searches, unauthorized changes to browser settings, and exposure to more severe threats such as data theft or ransomware.
Signs of Infection
Users whose systems have been affected by a program in this category often notice unusual behavior, such as new and unrecognized toolbars or browser extensions, a changed default search engine or homepage, increased pop-up advertisements, unexplained new programs appearing in the installed applications list, sluggish system performance, or security software being disabled without the user's consent. Antivirus or anti-malware alerts flagging keygen-related files are also a clear indicator that such a tool has been present on the system.
How to Stay Protected
The safest way to avoid threats like PUP.Keygen.KD is to avoid downloading and running keygens, cracks, or other software piracy tools altogether, since these are consistently used as malware delivery vehicles. Users should obtain software only from official vendors or trusted marketplaces, keep operating systems and security tools updated, and remain cautious of file-sharing sites and forums that promote unauthorized software activation. Regular system scans and careful review of newly installed programs can help detect and remove unwanted software before it causes further harm.
Analysis Report
General information
| Family Name: | PUP.Keygen.KD |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
9b2b83cbb0596a21aa2d42bb01a58379
SHA1:
9b16b059fcdde4feba5081429af8b066e96e04ae
SHA256:
621F84867295E9F6484D2D7F9A1BF2B2E7FBCF62CE9F95D50829A8F4E318B73B
File Size:
160.77 KB, 160768 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 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
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- 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.
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Company Name | TODO: <Company name> |
| File Description | TODO: <File description> |
| File Version | 1.0.0.1 |
| Internal Name | Mathematica_8.exe |
| Legal Copyright | TODO: (c) <Company name>. All rights reserved. |
| Original Filename | Mathematica_8.exe |
| Product Name | TODO: <Product name> |
| Product Version | 1.0.0.1 |
File Traits
- Default Version Info
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 178 |
|---|---|
| Potentially Malicious Blocks: | 14 |
| Whitelisted Blocks: | 121 |
| Unknown Blocks: | 43 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
