Email Extraction
Extract transferred emails

Motivation

Emails are a key communication mechanism that holds plenty of digital evidence, starting from Mail header information about the sender and route, to transferred files via attachments.
Netcap currently extracts Email fetched over POP3 and support IMAP is in the making.

POP3

A POP3 audit record contains information about the addresses involved, as well as authentication information. The fetched mails are provided as an array of Mail instances.
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message POP3 {
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string Timestamp = 1;
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string ClientIP = 2;
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string ServerIP = 3;
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string AuthToken = 4;
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string User = 5;
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string Pass = 6;
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repeated Mail Mails = 7;
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}
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A Mail instance has the following fields:
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message Mail {
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string ReturnPath = 1;
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string DeliveryDate = 2;
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string From = 3;
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string To = 4;
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string CC = 5;
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string Subject = 6;
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string Date = 7;
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string MessageID = 8;
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string References = 9;
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string InReplyTo = 10;
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string ContentLanguage = 11;
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bool HasAttachments = 12;
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string XOriginatingIP = 13;
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string ContentType = 14;
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string EnvelopeTo = 15;
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repeated MailPart Body = 16;
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}
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For exploring captured emails, the Maltego Integration can be used:

SMTP

For SMTP an audit record is also available, though mail extraction has not been implemented yet:
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message SMTP {
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string Timestamp = 1;
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bool IsEncrypted = 2;
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bool IsResponse = 3;
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repeated SMTPResponse ResponseLines = 4;
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SMTPCommand Command = 5;
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PacketContext Context = 6;
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}
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Last modified 1yr ago
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