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Sophos threat-hunting group tracking the evolution of ClickFix-involved Deno abuse, with a companion write-up covering a later evaluation window.
No evidence-backed relationships are recorded.
Sophos's Counter Threat Unit found the advertisement on August 24. The cheapest tier answered a direct request for a Python remote access trojan with source code, and the service runs on a local model no provider can patch.
Reality
Eclypsium tracked 158 infrastructure advisories between August 25 and September 17. The exploited maximum-severity flaws it highlights are authentication bypasses in Cisco's Firewall Management Center and Identity Services Engine.
Reality
Sophos found the timezone_check implant on compromised Cisco Firewall Management Center devices in August 2026 and assessed it likely Sandworm's work. Generic SysV persistence replaces the firmware trick and widens the appliances it can run on.
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Sophos CTU reviewed 15 intrusions by GOLD SHERWOOD affiliates and found the same route each time: a working credential on a Fortinet SSL VPN with no MFA, then RDP into domain controllers within hours.
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Sophos says a June 2026 campaign used winget to install the Deno runtime on victim machines, then used deno.exe to fetch, run and persist remote JavaScript ending in a Python infostealer.
Reality
Attackers installed a legitimate JavaScript and TypeScript runtime on victim hosts to run payloads in memory. The middle of the chain barely varied, which is where detection work belongs.
Reality