FKLR malware family

FKLR is a malware family tracked by MalwareAnalyzer by Cyble across 1 publicly analyzed sample. First seen 2026-07-29, most recently 2026-07-29. Observed ATT&CK techniques include T1112.

Corpus statistics

ATT&CK techniques used by FKLR

Extracted command-and-control infrastructure

Recent FKLR samples

Frequently asked about FKLR

What is FKLR?
FKLR is a malware family tracked by MalwareAnalyzer by Cyble across 1 publicly analyzed sample. First seen 2026-07-29, most recently 2026-07-29. Observed ATT&CK techniques include T1112.
How many FKLR samples have been analyzed?
MalwareAnalyzer by Cyble holds 1 publicly analyzed sample attributed to FKLR, first seen 2026-07-29 and most recently 2026-07-29. 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 FKLR use?
Across our FKLR samples the most frequently observed techniques are T1112 (1). Counts are the number of analyzed samples in which each technique was observed.
What file types does FKLR use?
FKLR samples in this corpus are distributed as html (1).
Does FKLR use command-and-control infrastructure?
Yes. 18 distinct command-and-control indicators have been extracted from FKLR samples, either from static configuration or from traffic captured during sandbox detonation. The full list is published on the family page.
Is FKLR malicious?
1 of 1 analyzed FKLR sample was 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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