Threat Database Trojans Trojan.Agent.CLA

Trojan.Agent.CLA

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 101
First Seen: April 20, 2022
Last Seen: March 2, 2026
OS(es) Affected: Windows

The detection of Trojan.Agent.CLA indicates that a potentially malicious program has been identified on your system. This type of threat is commonly referred to as a Trojan, which is a broad category of malware that can perform a variety of malicious actions. It's essential to understand the nature of this threat and take immediate action to remove it from your system to prevent further damage.

What Is Trojan.Agent.CLA?

Trojan.Agent.CLA is a type of malware that can compromise the security and integrity of your system. The name "Trojan" refers to the fact that this type of malware often disguises itself as a legitimate program or file, allowing it to evade detection and gain access to your system. The ".CLA" suffix may indicate a specific variant or classification of the malware, but without more information, it's difficult to determine its exact nature or origin.

How Trojan.Agent.CLA Operates

Trojan-type malware, including Trojan.Agent.CLA, typically operates by exploiting vulnerabilities in your system or tricking you into installing it. Once installed, it can perform a variety of malicious actions, such as stealing sensitive information, installing additional malware, or providing unauthorized access to your system. Trojan.Agent.CLA may also attempt to communicate with its creators or other malicious programs, allowing it to receive updates or transmit stolen data.

Symptoms of Infection

The symptoms of a Trojan.Agent.CLA infection can vary, but common indicators include unusual system behavior, such as slow performance, unexpected crashes, or unfamiliar programs running in the background. You may also notice suspicious network activity, such as unfamiliar connections or data transfers. In some cases, you may not notice any symptoms at all, which is why regular system scans and monitoring are essential for detecting and removing malware.

  • Unexplained changes to your system settings or configuration
  • Appearance of unfamiliar programs or icons
  • Increased system crashes or instability
  • Unusual network activity or data transfers

How to Remove Trojan.Agent.CLA

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for easier removal
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove the malware
  3. Uninstall any suspicious programs or applications that may be related to the malware
  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 full scan to ensure that the malware has been completely removed

Conclusion

Removing Trojan.Agent.CLA from your system requires careful attention and a thorough approach. By following the steps outlined above and taking proactive measures to protect your system, you can help prevent future infections and keep your data and system safe. Remember to always be cautious when installing new programs or clicking on links, and to regularly scan your system for malware to ensure that you're protected against the latest threats.

Analysis Report

General information

Family Name: Trojan.Agent.CLA
Packers: UPX!
Signature status: No Signature

Known Samples

MD5: ce0bcc44ea12579d6e67eb2e35977ed0
SHA1: db7ab91601819d7dc6bd3c076e85cd4c633621ca
SHA256: A86AD433A7096CBE7DA8E310E35184F50D9F11F0DB53A6295FFC008319575E23
File Size: 209.41 KB, 209408 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 has been packed
  • File has TLS information
  • File is 64-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
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  • File is Native application (NOT .NET application)
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • No Version Info
  • packed
  • x64

Block Information

Total Blocks: 1,607
Potentially Malicious Blocks: 8
Whitelisted Blocks: 1,488
Unknown Blocks: 111

Visual Map

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

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtClose
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
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  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN
User Data Access
  • GetUserName

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