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CategoryAll Vulnerability 91 Exploit / PoC 90 Industry 26 Advisory 20 Policy & legal 10 AI safety & security 8 Research 5 Data breach 4 Tools 3 Threat actor 3 Malware 2 Ransomware 2 Model release 2 Phishing & fraud 2

SeverityAll critical 54 high 145 medium 23 low 1 info 47

Hacked HBO Max Reddit Account Used for Malware Delivery via ClickFix Attack

Attackers hijacked HBO Max's verified Reddit account to push 108 malicious ads delivering AMOS and Amatera infostealers via ClickFix prompts.

Threat actors compromised the official u/hbomax Reddit account and ran 108 malicious ads over 48 hours in a campaign tracked as PasteSwitch, directing users to a fake hbomaxx[.]us site. ClickFix prompts tricked macOS users into running curl | zsh payloads (MacSync, AMOS Helper, fake wallets) and Windows users into executing MSHTA/PowerShell delivering Amatera Stealer. AnimateClipper and ZigClipper clipboard hijackers swapped cryptocurrency addresses using a blockchain-hosted C&C active since early 2026. Reddit suspended the ads after notification.

SecurityWeekupdated Sep 15, 11:51 UTC · 1d agofirst Sep 15, 09:09 UTC · 1d agoMalware in the wild 7 sources

F5 BIG-IP APM Malware Injects a PHP Web Shell Into Memory, Evading Disk Scans

Sophos found F5 BIG-IP APM malware that injects a PHP web shell into Apache's memory, evading disk scans, linked to exploited CVE-2025-53521.

Sophos's September 7 analysis describes malware tied to F5's c05d5254 activity that hooks apr_dso_load, modifies the libphp PHP module in memory, and injects a PHP web shell when Apache loads apm_css.php3, full_wt.php3 or webtop_popup_css.php3, leaving on-disk files clean. A separate installer infects /usr/sbin/httpd and umount, runs before Apache starts, disables SELinux (per ESET's related PoisonedRefresh analysis), and opens a local socket at /run/bigtlog.pipe for shell access. The activity is linked to CVE-2025-53521 in BIG-IP APM, rated 9.8 CVSS 3.1, patched in October 2025, added to CISA KEV on March 27, 2026.

The Hacker NewsSep 9, 07:36 UTC · 7d agoMalware in the wildCVE-2025-53521