Threat Database Trojans Trojan.Agent.PDFA

Trojan.Agent.PDFA

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 15,268
Threat Level: 80 % (High)
Infected Computers: 5
First Seen: November 18, 2025
Last Seen: May 31, 2026
OS(es) Affected: Windows

The detection of Trojan.Agent.PDFA on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the security and integrity of your computer, potentially leading to unauthorized access, data theft, and other malicious activities. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.

What Is Trojan.Agent.PDFA?

Trojan.Agent.PDFA is a type of Trojan horse malware that can infect your computer through various means, such as malicious downloads, infected software, or exploited vulnerabilities. The name "Trojan" refers to the fact that this malware disguises itself as a legitimate program or file, allowing it to bypass security measures and gain unauthorized access to your system. The ".PDFA" suffix may indicate a specific variant or characteristic of the malware, but its exact meaning is not publicly disclosed.

How Trojan.Agent.PDFA Operates

Once installed, Trojan.Agent.PDFA can operate in the background, allowing attackers to remotely access and control your computer. This can lead to a range of malicious activities, including data theft, keylogging, and the installation of additional malware. The malware may also attempt to communicate with its command and control servers, potentially allowing attackers to update or modify the malware's behavior. Trojan.Agent.PDFA can also exploit system vulnerabilities to spread to other computers or devices on the same network.

Symptoms of Infection

The symptoms of a Trojan.Agent.PDFA infection can vary, but common indicators include slow system performance, unexpected pop-ups or ads, and unusual network activity. You may also notice that your computer is behaving erratically, such as crashing or freezing frequently. In some cases, the malware may attempt to disguise itself as a legitimate program or system process, making it difficult to detect. If you suspect that your computer is infected with Trojan.Agent.PDFA, it is essential to take immediate action to remove the malware and prevent further damage.

How to Remove Trojan.Agent.PDFA

  1. Boot your computer 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 files or programs.
  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 add-ons.
  5. Reboot your computer and perform a follow-up scan to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.Agent.PDFA from your system requires careful attention to detail and a thorough understanding of the malware's behavior. By following the steps outlined above and taking proactive measures to protect your computer, you can help prevent future infections and keep your system secure. It is essential to remain vigilant and monitor your system for any suspicious activity, as new malware variants and threats are constantly emerging. By staying informed and taking prompt action, you can help protect your computer and your personal data from the risks associated with Trojan.Agent.PDFA and other types of malware.

Analysis Report

General information

Family Name: Trojan.Agent.PDFA
Signature status: No Signature

Known Samples

MD5: dd9c82cb05ccd712f43e4fd7cc6c7b8d
SHA1: 5f20f3012d53005cca745e9a7a002974fc9fbe95
SHA256: 1DFC0CD5158929FED63AA525DD52448B0E5515B2CA2BF6498C9304B23D71237E
File Size: 133.19 KB, 133192 bytes
MD5: 73f41a8513094ff0f6ab3de67273b7a4
SHA1: 305ff03a4684cb1c9676c079b283c9abd364907b
SHA256: 6B0D5A4A63CB91F28078A69BC29C6397F84CA6B497EA09CAEFCD410EB92F388D
File Size: 147.27 KB, 147268 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 has TLS information
  • File is 64-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • File is Native application (NOT .NET application)
  • File is not packed
Show More
  • 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
  • x64

Block Information

Total Blocks: 94
Potentially Malicious Blocks: 1
Whitelisted Blocks: 93
Unknown Blocks: 0

Visual Map

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

Similar Families

  • Downloader.Agent.MN
  • Kryptik.BCP
  • Kryptik.BTDA
  • ReverseShell.FRA
  • ReverseShell.PBD
Show More
  • Trojan.Agent.Gen.CBC
  • Trojan.Agent.Gen.CCU
  • Trojan.Agent.Gen.CJK
  • Trojan.Agent.Gen.CSU
  • Trojan.Kryptik.Gen.EVJ
  • Trojan.ShellcodeRunner.Gen.NK
  • Trojan.ShellcodeRunner.Gen.PX

Trending

Most Viewed

Loading...