Ransom:Win32/Filecoder describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/FileCoder.A describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/FileCoder.B describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk. 

Ransom:Win32/FileCoder.C describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/FileCoder!bit describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/FileCoder!dha describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

The "!dha" suffix in the detection name indicates that this is a heuristic or behavioral detection. This means that the identification occurs by analyzing suspicious actions and patterns of code that are like known backdoor behaviors as opposed to having a unique, identified fingerprint. Heuristic detection is used for new variants of known malware families or for detecting threats that exhibit polymorphism that modify the code that is visible on the surface, making it hard to detect. 

Ransom:Win32/Filecoder.KP describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/Filecoder!ml describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk. 

Ransom:Win32/Filecoder.PC describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/Filecoder.AC describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/Filecoder!pz describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/Filecoder.GF describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk. 

Ransom:Win32/Filecoder.PF describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/FileCoder!AMTB describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain at a persistent risk. 

Ransom:Win32/Filecoder!MTB describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

The “!MTB” suffix refers to Machine Threat Behavior, which indicates that this trojan was detected using behavioral analysis or machine learning models. Instead of relying on a static signature (like a known file hash), the antivirus engine identified the program's actions, sequence of operations, or code patterns as malicious. These patterns are consistent with the known behavior of the Filecoder family.  

Ransom:Win32/Filecoder!MSR describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk. 

Ransom:Win32/Filecoder.STA describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/Filecoder.DLK describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

Ransom:Win32/FileCoder.B!MTB describes a diverse family of ransomware-as-a-service (RaaS) payloads designed to encrypt data on infected Windows devices and extort payment for decryption. This classification represents a broad malicious ecosystem where various threat actors customize and deploy the malware against organizations in sectors such as healthcare, education, and manufacturing. The threat originates from compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, or secondary payloads dropped by other malware. Because it operates under a service model, the Filecoder constantly evolves, with different versions sharing core code while using varied delivery and persistence techniques to remain a persistent risk.  

The “!MTB” suffix refers to Machine Threat Behavior, which indicates that this trojan was detected using behavioral analysis or machine learning models. Instead of relying on a static signature (like a known file hash), the antivirus engine identified the program's actions, sequence of operations, or code patterns as malicious. These patterns are consistent with the known behavior of the Filecoder family.