UPX malware family

UPX is a malware family tracked by MalwareAnalyzer by Cyble across 18 publicly analyzed samples. First seen 2026-08-09, most recently 2026-08-24. Observed ATT&CK techniques include T1057, T1105, T1112.

Corpus statistics

ATT&CK techniques used by UPX

Recent UPX samples

Frequently asked about UPX

What is UPX?
UPX is a malware family tracked by MalwareAnalyzer by Cyble across 18 publicly analyzed samples. First seen 2026-08-09, most recently 2026-08-24. Observed ATT&CK techniques include T1057, T1105, T1112.
How many UPX samples have been analyzed?
MalwareAnalyzer by Cyble holds 18 publicly analyzed samples attributed to UPX, first seen 2026-08-09 and most recently 2026-08-24. This counts public submissions to this platform only, so it is a measure of what we have seen rather than of the family's total prevalence.
What MITRE ATT&CK techniques does UPX use?
Across our UPX samples the most frequently observed techniques are T1057 (18), T1105 (10), T1112 (1). Counts are the number of analyzed samples in which each technique was observed.
What file types does UPX use?
UPX samples in this corpus are distributed as pe (18).
Is UPX malicious?
18 of 18 analyzed UPX samples were scored malicious by the fused verdict, which combines multi-engine static scanning, YARA and hash reputation with behavior captured during real sandbox detonation. Each report lists every signal that contributed to its score.

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