Senses

Archive via Custom Method · SynAc

TERM

Archive via Custom Method

An adversary may compress or encrypt data that is collected prior to exfiltration using a custom method. Adversaries may choose to use custom archival methods, such as encryption with XOR or stream ciphers implemented with no external library or utility references. Custom implementations of well-known compression algorithms have also been used.(Citation: ESET Sednit Part 2)

Updated

Jan 03, 2026

Senses

Sense 1

An adversary may compress or encrypt data that is collected prior to exfiltration using a custom method. Adversaries may choose to use custom archival methods, such as encryption with XOR or stream ciphers implemented with no external library or utility references. Custom implementations of well known compression algorithms have also been used.(Citation: ESET Sednit Part 2)

MITRE ATT&CK (CTI STIX Data)

Bibliography

MITRE ATT&CK (CTI STIX Data)
Accessed Jan 03, 2026Quoted
MITRE ATT&CK CTI (STIX bundle)
https://raw.githubusercontent.com/mitre-attack/attack-stix-data/master/enterprise-attack/enterprise-attack.json
See repository LICENSE.txt for ATT&CK terms: non-exclusive royalty-free license; reproduce MITRE copyright + license in copies. Verify requirements before publishing quoted text.
Source: MITRE ATT&CK (attack-stix-data).