Trojan.Rugmi.PGD
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Threat Level: | 80 % (High) |
| First Seen: | November 3, 2026 |
| Last Seen: | November 11, 2026 |
| OS(es) Affected: | Windows |
Trojan.Rugmi.PGD is a Windows Trojan with a danger level of 8 out of 10. It was first seen on 2026-11-03 and last seen on 2026-11-11. The feed records only one detection so far, but a Trojan of this kind can still do serious damage once it runs on a computer.
Table of Contents
What the threat does
According to the feed, Rugmi.PGD installs itself stealthily and then runs silently in the background while carrying out malicious functions. After installation it may give attackers complete control over the infected system. It may also covertly delete files and install additional malware.
The analyzed file has no digital signature and no embedded security information. It is a 64-bit native Windows program (not .NET) and is not packed. It has an exports table and TLS information. Of 216 code blocks analyzed, 37 were flagged as potentially malicious and 179 matched known-clean code.
The file's version information describes it as "OperationUI" (original filename OperationUI.dll), version 11.25.1, from geek software GmbH, with the product name "PDF24 Creator". This metadata alone does not show that the software vendor is involved. Trojans commonly borrow the names and details of legitimate programs to look harmless, which is typical behavior for the category. The file is also listed as a DLL by its traits, yet its PE header does not have the DLL flag set, an inconsistency that makes it worth treating with suspicion.
The recorded behavior includes calls to low-level Windows functions in ntdll.dll, such as NtWriteFile, NtQueryVirtualMemory, NtFreeVirtualMemory and NtQueryInformationProcess. These calls cover writing files, inspecting memory and querying process information. They are not harmful by themselves, but malware often uses them to work close to the operating system.
How it usually gets onto computers
The feed says Rugmi.PGD most often spreads in these ways:
- Exploiting system vulnerabilities and security flaws.
- Software downloads from malicious websites.
- Email attachments from untrusted sources, usually .exe, .pif, .avi and even .jpg files.
Disguising an executable as a picture or video is a typical Trojan trick. Double extensions and familiar icons are common ways to make a file look safe.
Risks for the user
- Loss of control: attackers may be able to take full control of the system.
- Data loss: files may be deleted without your knowledge.
- More infections: additional malware may be installed on the computer.
- Privacy and account risk: typically, Trojans with remote-control abilities can expose personal files and saved logins. The feed does not specify what Rugmi.PGD steals.
Signs of infection
The threat is designed to stay quiet, so there may be no obvious symptoms. These signs are typical of Trojan infections in general, and none is specific to Rugmi.PGD:
- Files that are missing or have changed without explanation.
- Unfamiliar programs or processes you did not install.
- Slower performance or unexpected network activity.
- Security settings that have been changed or switched off.
- A program that claims to be from a known vendor but is unsigned or located in an unusual folder.
How to stay protected
- Keep Windows and all installed software up to date to close the vulnerabilities this Trojan may exploit.
- Download software only from the official websites of the developers, and avoid unknown download portals.
- Do not open attachments from senders you do not know. Be careful with files such as .exe or .pif, and with "images" or "videos" that ask you to run something.
- Check that programs are digitally signed by the publisher you expect. An unsigned file that claims to belong to a well-known product deserves suspicion.
- Keep regular backups on a drive or service that is not permanently connected to your computer.
- Run a full scan with an up-to-date, reputable security tool if you suspect an infection, and remove everything it flags.
If you believe the Trojan has been active on your computer, disconnect it from the internet. Then scan and clean the system, and change important passwords from a different, trusted device. If the computer held sensitive data, consider professional help.
Analysis Report
General information
| Family Name: | Trojan.Rugmi.PGD |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
b8d4252eea7dd8cc16fed617ec722dd7
SHA1:
b167f59d5a9f9159674a3ddad64ca1becda5afd4
SHA256:
15368EB08AAD3453ECF3FB4532F3203CF36606845018C7C31D7A1233212C7180
File Size:
79.36 KB, 79360 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have security information
- File has exports table
- File has TLS information
- File is 64-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)
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 | geek software GmbH |
| File Description | OperationUI |
| File Version | 11.25.1 |
| Internal Name | OperationUI |
| Legal Copyright | geek software GmbH |
| Original Filename | OperationUI.dll |
| Product Name | PDF24 Creator |
| Product Version | 11.25.1 |
File Traits
- dll
- x64
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: | 216 |
|---|---|
| Potentially Malicious Blocks: | 37 |
| Whitelisted Blocks: | 179 |
| Unknown Blocks: | 0 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- Rugmi.PGD
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 |
|---|---|
| Syscall Use |
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