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2026-10-07 ⋅ CrowdStrike ⋅ Ashley Campion
Unknown Threat Actor Uses AI-Driven ARTEX to Target South Korean Finance
2026-08-05 ⋅ SOC Prime ⋅ SOC Prime
SmartApeSG Pushes an Unknown RAT Through ClickFix Lures
SmartApeSG
2025-09-07 ⋅ dmpdump ⋅ dmpdump
Unknown Malware Using Azure Functions as C2
Unidentified 124 (Azure Functions)
2025-05-27 ⋅ AIVD ⋅ AIVD
Unknown Russian group behind hacks Dutch targets
Void Blizzard
2024-11-28 ⋅ StrikeReady ⋅ StrikeReady Labs
RU APT targeting Energy Infrastructure (Unknown unknowns, part 3)
Edam Emmenhtal
2024-08-10 ⋅ kienmanowar Blog ⋅ m4n0w4r, Tran Trung Kien
[QuickNote] Retrieve unknown python stealer from PyInstaller
2024-07-06 ⋅ unknown
xeno-RAT open-source remote access tool (RAT)
XenoRAT
2024-03-26 ⋅ K7 Security ⋅ Vigneshwaran P
Unknown TTPs of Remcos RAT
Remcos
2024-03-05 ⋅ Medium walmartglobaltech ⋅ Jason Reaves, Joshua Platt
Unknown Nim Loader using PSBypassCLM
Unidentified 115 (Nim Loader)
2023-07-29 ⋅ Medium walmartglobaltech ⋅ Jason Reaves, Joshua Platt
Unknown powershell backdoor with ties to new Zloader
Zloader
2023-07-07 ⋅ Lab52 ⋅ Lab52
Beyond appearances: unknown actor using APT29’s TTP against Chinese users
Cobalt Strike
2023-06-01 ⋅ Kaspersky Labs ⋅ Georgy Kucherin, Igor Kuznetsov, Leonid Bezvershenko, Valentin Pashkov
Operation Triangulation: iOS devices targeted with previously unknown malware
Operation Triangulation
2023-02-22 ⋅ Symantec ⋅ Symantec Threat Hunter Team
Hydrochasma: Previously Unknown Group Targets Medical and Shipping Organizations in Asia
Cobalt Strike
2022-08-25 ⋅ Darktrace ⋅ Emma Foulger, Max Heinemeyer
Detecting the Unknown: Revealing Uncategorized Ransomware Using Darktrace
BlackByte
2022-06-21 ⋅ Kaspersky ⋅ Giampaolo Dedola
APT ToddyCat: Unveiling an unknown APT actor attacking high-profile entities in Europe and Asia
ToddyCat
2022-05-24 ⋅ Malwarebytes ⋅ Threat Intelligence Team
Unknown APT group has targeted Russia repeatedly since Ukraine invasion
Sakula RAT
2022-01-12 ⋅ Lab52 ⋅ Jagaimo Kawaii
TokyoX: DLL side-loading an unknown artifact (Part 2)
TokyoX
2022-01-10 ⋅ Lab52 ⋅ ml10
TokyoX: DLL side-loading an unknown artifact
TokyoX
2021-10-07 ⋅ ESET Research ⋅ Vladislav Hrčka
FontOnLake: Previously unknown malware family targeting Linux
FontOnLake
2021-09-16 ⋅ Twitter (@GossiTheDog) ⋅ Kevin Beaumont
Tweet on some unknown threat actor dropping Mgbot, custom IIS modular backdoor and cobalstrike using exploiting ProxyShell
Cobalt Strike MgBot