Which ransomware attacks victims through email campaigns, with ransom notes directing victims to contact the actors via email and pay in bitcoins for decryption?

Which ransomware attacks victims through email campaigns, with ransom notes directing victims to contact the actors via email and pay in bitcoins for decryption?

• A. eCh0raix
• B. Worms
• C. SamSam
• D. Dharma

Answer: (D)

The effect being tested is how a ransomware family delivers itself and communicates with victims. Dharma is known for spreading via email-based campaigns and using ransom notes that tell victims to contact the attackers by email and pay the ransom in Bitcoin to get decryptors. This combination of phishing-like distribution and explicit email/Bitcoin payment instructions fits the description precisely. Other options don’t match this pattern: eCh0raix primarily targets NAS devices and uses network-based exploits rather than phishing emails; SamSam relied on targeted intrusions and negotiation without directing victims to contact via email; and “Worms” is a general term not tied to a ransomware family with this email-based ransom-Note behavior.

The effect being tested is how a ransomware family delivers itself and communicates with victims. Dharma is known for spreading via email-based campaigns and using ransom notes that tell victims to contact the attackers by email and pay the ransom in Bitcoin to get decryptors. This combination of phishing-like distribution and explicit email/Bitcoin payment instructions fits the description precisely.

Other options don’t match this pattern: eCh0raix primarily targets NAS devices and uses network-based exploits rather than phishing emails; SamSam relied on targeted intrusions and negotiation without directing victims to contact via email; and “Worms” is a general term not tied to a ransomware family with this email-based ransom-Note behavior.