Threat Database Trojans Trojan.Rugmi.LDA

Trojan.Rugmi.LDA

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 10,993
Threat Level: 80 % (High)
Infected Computers: 56
First Seen: September 20, 2025
Last Seen: June 27, 2026
OS(es) Affected: Windows

A recent scan has detected the presence of Trojan.Rugmi.LDA on your system, which is a type of malicious software designed to compromise the security and integrity of your computer. This detection is a cause for concern, as it indicates that your system may be vulnerable to further attacks or data breaches. In this report, we will provide an overview of what Trojan.Rugmi.LDA is, how it operates, and the steps you can take to remove it from your system.

What Is Trojan.Rugmi.LDA?

Trojan.Rugmi.LDA is a type of Trojan horse malware, which is a broad category of malicious software that disguises itself as legitimate software. Trojans are designed to deceive users into installing them, often by masquerading as useful programs or attachments. Once installed, Trojans can cause a range of problems, including data theft, system compromise, and disruption of normal computer function. The name Trojan.Rugmi.LDA suggests that it is a specific variant of Trojan horse malware, but the exact nature and behavior of this threat are not well understood without further analysis.

How Trojan.Rugmi.LDA Operates

Like other Trojans, Trojan.Rugmi.LDA likely operates by exploiting vulnerabilities in software or user behavior to gain unauthorized access to a system. It may spread through various means, such as phishing emails, infected software downloads, or exploited vulnerabilities in operating systems or applications. Once installed, the Trojan can establish a backdoor on the compromised system, allowing remote access and control by the attacker. This can lead to a range of malicious activities, including data theft, keylogging, and the installation of additional malware.

Symptoms of Infection

The symptoms of a Trojan.Rugmi.LDA infection can vary, but common signs include unusual system behavior, such as slow performance, frequent crashes, or unfamiliar programs and icons. You may also notice suspicious network activity, such as unfamiliar connections or data transfers. In some cases, the Trojan may attempt to communicate with its command and control servers, which can be detected by monitoring network traffic. However, many Trojans are designed to operate stealthily, making them difficult to detect without the use of specialized security software.

How to Remove Trojan.Rugmi.LDA

  1. Boot your system in Safe Mode with Networking to prevent the Trojan from loading and to allow for the removal process.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malicious files or programs associated with Trojan.Rugmi.LDA.
  3. Uninstall any suspicious programs or applications that may be related to the Trojan, using the Add/Remove Programs feature in your operating system.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your system and perform another full scan with your anti-malware tool to ensure that all remnants of the Trojan have been removed.

Conclusion

The detection of Trojan.Rugmi.LDA on your system is a serious issue that requires immediate attention. By following the steps outlined above, you can remove the Trojan and restore the security and integrity of your system. However, it is essential to remain vigilant and take proactive steps to prevent future infections, such as keeping your operating system and software up to date, using strong antivirus software, and avoiding suspicious downloads and attachments. Remember that the removal of malware is just the first step in protecting your system; ongoing monitoring and maintenance are crucial to ensuring the long-term security of your computer.

Analysis Report

General information

Family Name: Trojan.Rugmi.LDA
Signature status: No Signature

Known Samples

MD5: 3a0b7004c0e7e62fb506b848d6f6651d
SHA1: b5516d227208181bf95080a77b79378c7a92aa45
SHA256: 613F423C04AB3CC254CF77ABE197EC32FA0BD328709F9E25B5B21509DEF33774
File Size: 224.26 KB, 224256 bytes
MD5: bcbcb46c2b724586410e152c8fd623f7
SHA1: 8c6100c7b2adf9433e9918bfcb100d290a651ef7
SHA256: 61741F791B5BC3308F57363B415350F5AA1D4B5912C9CCF132F3BF8FD1228096
File Size: 805.41 KB, 805408 bytes
MD5: e5fdf583b73f5b864b22f9a38b410a37
SHA1: b5857de5710befcba1d6c550ec6c829113b3f30d
SHA256: 61C07D0DC96F30436A479E09F15615AB96014D3C3159861995F19846E05F284B
File Size: 537.76 KB, 537760 bytes
MD5: b2bd618ecd93b3d079e925b40996a6ec
SHA1: 8bca8685c317d23a520ae0cd9f79cf08d2651e26
SHA256: 919BC08A36F97C1DE97E36BDE2A421A529F9EA7B3C4D5B3EF20CAAC888521F3D
File Size: 536.14 KB, 536136 bytes
MD5: 84b5f8acd199601b67970b0ed01c9c0a
SHA1: d2228b3abee64989c225634dea8a07b0d14bc298
SHA256: 2B7E4A2B198FD0B4B516726CD200102FF61C686380495B7EA62E329F376E7AC0
File Size: 171.01 KB, 171008 bytes
Show More
MD5: cc97aec4d65c6dc7b265d51ba59b659c
SHA1: 78219cd9dfd535dd2f58b4c86017d83ba7604634
SHA256: 9DBD4B1C99ABF50933CBCC6289A2273283FFE80AEE59AF74280BFB32EDDCAD2A
File Size: 1.07 MB, 1065984 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 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)
  • File is Native application (NOT .NET application)
  • File is not packed
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  • 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
Comments af83a40e
Company Name
  • Cryptlex, LLC.
  • Microsoft Corporation
  • RapidSolution Software AG
Division Name Natural Language Group
File Description
  • CDWizard Library Module
  • LexActivator
  • Microsoft.WITDataStore32.dll
  • Natural Language Spelling Service
  • NLEResou 动态链接库
  • WS_Log Dynamic Link Library
File Version
  • 16.200.35917.1 built by: releases/dev17.11vs (4d27e5749f)
  • 15.0.4420.1017
  • 4, 2, 5, 7
  • 3.19.1
  • 1.2.3306.0
  • 1, 3, 1, 5
Internal Name
  • CDWizard
  • LexActivator.dll
  • Microsoft.WITDataStore32.dll
  • msspell7
  • NLEResou
  • WS_Log
Legal Copyright
  • Copyright (C) 2008
  • Copyright (C) 2010
  • Copyright (C) 2020 Cryptlex, LLC.
  • Copyright 2006,2007
  • © Microsoft Corporation. All rights reserved.
Legal Trademarks1 Microsoft® is a registered trademark of Microsoft Corporation.
Legal Trademarks2 Windows® is a registered trademark of Microsoft Corporation.
Original Filename
  • CDWizard.dll
  • LexActivator.dll
  • Microsoft.WITDataStore32.dll
  • msspell7.dll
  • NLEResou.dll
  • WS_Log.dll
Product Name
  • CDWizard Library Module
  • LexActivator
  • Microsoft® Azure® DevOps Server®
  • Natural Language Components
  • NLEResou 动态链接库
  • WS_Log Dynamic Link Library
Product Version
  • 16.200.35917.1
  • 15.0.4420.1017
  • 4, 2, 5, 7
  • 3.19.1
  • 1.2.3306.0
  • 1, 3, 1, 5

Digital Signatures

Signer Root Status
Audials AG DigiCert Trusted G4 Code Signing RSA4096 SHA256 2021 CA1 Hash Mismatch
Microsoft Corporation Microsoft Code Signing PCA Hash Mismatch
Microsoft Corporation Microsoft Code Signing PCA 2011 Hash Mismatch

File Traits

  • dll
  • HighEntropy
  • x86

Block Information

Total Blocks: 2,145
Potentially Malicious Blocks: 419
Whitelisted Blocks: 1,725
Unknown Blocks: 1

Visual Map

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0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Kryptik.YB
  • Rugmi.FC
  • Rugmi.LDB

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtProtectVirtualMemory
Show More
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • win32u.dll!NtUserGetKeyboardLayout
  • win32u.dll!NtUserGetThreadState
Process Shell Execute
  • CreateProcess
Anti Debug
  • NtQuerySystemInformation
Process Manipulation Evasion
  • NtUnmapViewOfSection

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\b5516d227208181bf95080a77b79378c7a92aa45_0000224256.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\8c6100c7b2adf9433e9918bfcb100d290a651ef7_0000805408.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\b5857de5710befcba1d6c550ec6c829113b3f30d_0000537760.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\8bca8685c317d23a520ae0cd9f79cf08d2651e26_0000536136.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\d2228b3abee64989c225634dea8a07b0d14bc298_0000171008.,LiQMAxHB
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C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\78219cd9dfd535dd2f58b4c86017d83ba7604634_0001065984.,LiQMAxHB

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