MITRE ATT&CKsub-technique
T1505.003 Web Shell
- Domain
- enterprise
- Tactics
- Persistence
- Platforms
- Linux, macOS, Network Devices, Windows
- Version
- 1.5
- Created
- 2019-12-13
Description
Adversaries may backdoor web servers with web shells to establish persistent access to systems. A Web shell is a Web script that is placed on an openly accessible Web server to allow an adversary to access the Web server as a gateway into a network. A Web shell may provide a set of functions to execute or a command-line interface on the system that hosts the Web server.
In addition to a server-side script, a Web shell may have a client interface program that is used to talk to the Web server (e.g. China Chopper Web shell client).
Related
Subtechnique of · MITRE ATT&CK (1)
- T1505 Server Software Component technique
Tactic · MITRE ATT&CK (1)
- TA0003 Persistence tactic
Referenced by MITRE ATT&CK · mitigates (2)
Referenced by MITRE ATT&CK · uses (67)
- C0064 AI-Assisted Breach of Mexico's Government Infrastructure campaign
- C0061 Operation Digital Eye campaign
- S9028 PHPsert software (malware)
- S9024 SPAWNCHIMERA software (malware)
- S9014 PHASEJAM software (malware)
- C0058 SharePoint ToolShell Exploitation campaign
- G1051 Medusa Group group
- C0049 Leviathan Australian Intrusions campaign
- S1187 reGeorg software (malware)
- S1188 Line Runner software (malware)
- S1189 Neo-reGeorg software (malware)
- G1043 BlackByte group
- C0041 FrostyGoop Incident campaign
- G1041 Sea Turtle group
- S1163 SnappyTCP software (malware)
- C0040 APT41 DUST campaign
- C0039 Versa Director Zero Day Exploitation campaign
- C0038 HomeLand Justice campaign
- G1030 Agrius group
- C0032 C0032 campaign
- C0034 2022 Ukraine Electric Power Attack campaign
- S1120 FRAMESTING software (malware)
- S1118 BUSHWALK software (malware)
- S1119 LIGHTWIRE software (malware)
- S1117 GLASSTOKEN software (malware)
- S1115 WIREFIRE software (malware)
- C0029 Cutting Edge campaign
- S1113 RAPIDPULSE software (malware)
- S1110 SLIGHTPULSE software (malware)
- S1112 STEADYPULSE software (malware)
Referenced by CAPEC · att&ck technique (1)
- CAPEC-650 Upload a Web Shell to a Web Server attack pattern
Referenced by Compliance · mitigates (10)
- CIS-4.8 Uninstall or Disable Unnecessary Services on Enterprise Assets and Software CIS Safeguard v8.1
- CIS-6.8 Define and Maintain Role-Based Access Control CIS Safeguard v8.1
- NIST-AC-2 Account Management NIST 800-53 control
- NIST-AC-3 Access Enforcement NIST 800-53 control
- NIST-AC-5 Separation of Duties NIST 800-53 control
- NIST-AC-6 Least Privilege NIST 800-53 control
- NIST-CM-2 Baseline Configuration NIST 800-53 control
- NIST-CM-6 Configuration Settings NIST 800-53 control
- NIST-RA-5 Vulnerability Monitoring and Scanning NIST 800-53 control
- NIST-SI-4 System Monitoring NIST 800-53 control
References
- https://github.com/nsacyber/Mitigating-Web-Shells NSA Cyber Mitigating Web Shells
- https://www.volexity.com/blog/2022/06/15/driftingcloud-zero-day-sophos-firewall-exploitation-and-an-insidious-breach/ volexity_0day_sophos_FW
- https://www.fireeye.com/blog/threat-research/2013/08/breaking-down-the-china-chopper-web-shell-part-i.html Lee 2013
- https://www.us-cert.gov/ncas/alerts/TA15-314A US-CERT Alert TA15-314A Web Shells