ATT&CK Technique · Persistence
T1505.003 Web ShellMapped by 7 reports, 23 detection rules and 6 tracked actors on The Hunters Ledger. Technique page on attack.mitre.org.
← All techniques and the coverage heatmap
Reports
Each report maps this technique in its own ATT&CK table, at the confidence the report states. The link opens that table.
Detection rules
Rules whose ATT&CK coverage line names this technique, by detection page. The link opens the page's coverage table.
Detection rules
Carrier Credential Harvesting Through a Customer's RouterWebshell_PHP_XCMD_Header_Dispatcher (YARA, Detection); Non-Standard X-CMD Webshell Dispatch Header (SURICATA, Hunting)
Detection rules
The Middle Tier: A Non-APT Operator's Reach Into Four Southeast Asian GovernmentsZimbra Web Shell Decoy Banner (webshell_zimbra_security_monitor_jsp) (YARA, Detection); GIF89a-Polyglot PHP Web Shell (webshell_gif89a_php_polyglot) (YARA, Detection); Zimbra JSP Web Shell Dropped via Amavis Cpio Path Traversal (SIGMA, Detection); Joomla FTP-Staged Web Shell Filename Probe (SIGMA, Hunting)
Detection rules
CloudSync: An Assembler's Intrusion ToolkitASPX File Written to IIS aspnet_client Directory (SIGMA, Detection); IIS Worker Process Spawning A Command Shell (SIGMA, Detection)
Detection rules
GOCLOUD Multi-Service CryptojackingGOCLOUD_OmniHunter_v4_Orchestrator (YARA, Detection)
Detection rules
Enough to Be Dangerous: The Mechanics of an LLM-Assisted Intrusion CampaignLogback FileAppender Arbitrary File Write to JSP (YARA, Detection); Generic JSP Web Shell (Bash-Exec via HTTP Parameter) (YARA, Detection)
Detection rules
Flask C2 & MSSQL CLR Backdoor on a Windows Post-Exploitation Staging HostNPCInfoList1.aspx: AES .NET Loader Webshell (Godzilla-Style) (YARA, Detection); miss.asp: Ghost小组 ASP Webshell (Aatrox Eval Gadget) (YARA, Hunting); IIS Webshell Execution: w3wp.exe Spawning cmd.exe or WScript (SIGMA, Detection); Webshell Eval Gadget: Aatrox Query Parameter (SIGMA, Hunting)
Detection rules
BellaMain Turkish PhaaS Panel (79.137.192.3)BellaMain Wadanz Author Functions (YARA, Detection); BellaMain Admin Panel and Evidence-Destruction Commands (YARA, Detection)
Detection rules
Webserver Compromise Kit (91.236.230.250)ASP.NET Reverse Shell (InsomniaShell P/Invoke Pattern) (YARA, Detection); IIS Worker Process Spawns Interactive Shell (SIGMA, Detection)
Detection rules
From Webshells to The CloudSuspicious Clp-Fm Cookie (SIGMA, Hunting); Webshell File Creation (SIGMA, Hunting); Suspicious WordPress Install (SIGMA, Hunting); Suspicious POST Parameter mxx (SURICATA, Hunting)
Tracked actors
Designations whose reports map this technique.
- UTA-2026-008: Developer and operator of the BellaMain Turkish phishing-as-a-service panel
- UTA-2026-011: Financially motivated operator weaponising a cPanel authentication bypass with a custom harvesting toolkit
- UTA-2026-018: Hands-on-keyboard operator exploiting four Southeast Asian governments with a bespoke edge-device toolkit
- UTA-2026-019: Grey-market personal-data harvester running scores of LLM-assisted attack scripts against Chinese consumer platforms
- UTA-2026-021: Assembler-model intrusion operator staging other actors' tooling against one German victim forest
- UTA-2026-023: Telecom-focused operator reaching a carrier's credential plane through a customer's managed router
ATT&CK v19.2. MITRE ATT&CK® is a registered trademark of The MITRE Corporation; technique names are MITRE's and link to MITRE's own pages. The mapping on each linked page is this publication's reading of its own evidence.