#web shell
5 stories taggedweb shell.

Zimbra mail server flaw exploited in the wild, Microsoft warns after weeks of quiet attacks
Microsoft Threat Intelligence says attackers used a specially crafted email to hijack Zimbra Collaboration Suite mail servers, drop web shells and steal mailbox data, before the flaw was patched.

Stealthy Linux rootkit hides inside F5 BIG-IP devices and runs entirely from memory
Researchers say the implant, tracked by ESET as PoisonedRefresh, hooks Apache to slip a hidden web shell into legitimate PHP files without ever touching disk.

Hacker Backdoored a WordPress Plugin's Own Website, Hitting 1,500 Sites
The maker of Admin Menu Editor Pro says an attacker took over his site and shipped two poisoned updates that installed a hidden admin account on customer sites.

Cybercrime Crew Leaves Its Own Server Wide Open, Exposing 1.4 Million Website Target List
A misconfigured server ran unprotected for three weeks, handing researchers a rare look inside a mass WordPress hacking operation now tracked as WP-SHELLSTORM.

UNC6508 Spent a Year Inside US and Canadian Research Networks via Trojanized REDCap
A China-linked espionage group hijacked REDCap's own upgrade process to plant persistent malware across academic, medical, and defense-adjacent research environments.