Threat Database Trojans Trojan.Dropper.Agent.DC

Trojan.Dropper.Agent.DC

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 102
First Seen: September 28, 2022
Last Seen: October 24, 2025
OS(es) Affected: Windows

The detection of Trojan.Dropper.Agent.DC on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to evade detection and can cause significant harm to your computer and personal data. In this removal report, we will provide you with general guidance on how to understand and remove this threat.

What Is Trojan.Dropper.Agent.DC?

Trojan.Dropper.Agent.DC is a type of Trojan horse malware that is designed to drop and install additional malicious components on an infected system. The name "Trojan" refers to the fact that this type of malware disguises itself as a legitimate program or file, allowing it to bypass security measures and gain access to a system. The "Dropper" part of the name indicates that this malware is capable of installing additional malicious software on an infected system.

How Trojan.Dropper.Agent.DC Operates

Trojan.Dropper.Agent.DC operates by exploiting vulnerabilities in software or using social engineering tactics to trick users into installing the malware. Once installed, the malware can communicate with its command and control servers to receive instructions and download additional malicious components. This can lead to a range of malicious activities, including data theft, system compromise, and further malware distribution.

The exact mechanisms used by Trojan.Dropper.Agent.DC to operate can vary, but common tactics include using fake or misleading alerts, exploiting software vulnerabilities, and hijacking system processes to maintain persistence and evade detection.

Symptoms of Infection

Systems infected with Trojan.Dropper.Agent.DC may exhibit a range of symptoms, including slow system performance, unexpected crashes, and unusual network activity. Users may also notice suspicious programs or files on their system, or receive unexpected alerts or messages. However, it's also possible for the malware to operate without displaying any obvious symptoms, making it difficult to detect without the use of security software.

  • Unexplained changes to system settings or files
  • Appearance of suspicious or unknown programs
  • Increased network activity or data usage
  • System crashes or instability

How to Remove Trojan.Dropper.Agent.DC

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for easier removal.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malicious components.
  3. Uninstall any suspicious programs or applications that were installed around the time of infection.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or settings.
  5. Reboot your system and perform another scan with your anti-malware tool to ensure that all malicious components have been removed.

Conclusion

Removing Trojan.Dropper.Agent.DC requires careful attention to detail and a thorough understanding of how the malware operates. By following the steps outlined in this removal report, you can help to ensure that your system is clean and free from infection. However, prevention is always the best cure, and users should take steps to protect themselves from malware infections, including using reputable security software, avoiding suspicious downloads, and being cautious when clicking on links or opening email attachments.

Analysis Report

General information

Family Name: Trojan.Dropper.Agent.DC
Signature status: Hash Mismatch

Known Samples

MD5: 55734f6228bb83654647ffbf81cc0f4c
SHA1: e28be2f8725b1d38c3f844aa8cd59982c8dbaf3b
SHA256: 65503AE8CA8BA926D2235F0627DB69DDE1EDAFA1CA28F07E1124E47219489F38
File Size: 770.38 KB, 770384 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File has exports table
  • 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)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
Company Name Microsoft Corporation
File Description Microsoft® C Runtime Library
File Version 10.00.30319.1
Internal Name msvcr100_clr0400.dll
Legal Copyright © Microsoft Corporation. All rights reserved.
Original Filename msvcr100_clr0400.dll
Product Name Microsoft® Visual Studio® 2010
Product Version 10.00.30319.1

Digital Signatures

Signer Root Status
Microsoft Corporation Microsoft Code Signing PCA Hash Mismatch

File Traits

  • dll
  • HighEntropy
  • x86

Block Information

Total Blocks: 4,498
Potentially Malicious Blocks: 6
Whitelisted Blocks: 4,452
Unknown Blocks: 40

Visual Map

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... Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

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!NtTestAlert
  • 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

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\e28be2f8725b1d38c3f844aa8cd59982c8dbaf3b_0000770384.,LiQMAxHB

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