PULSECHECK
MITRE ATT&CK: S1108 View on attack.mitre.org
Aliases: PULSECHECK
- First seen
- 2020-01-01 00:00:00
- Malware type
- webshell
- Family
- Malware family
- Operating systems
- network-devices, linux
- Profile updated
- 2026-07-07 13:23:20
Targeted industries: defense-and-aerospace
Targeted regions: country_code:us
Context
PULSECHECK is a web shell written in Perl that was used by APT5 as early as 2020 including against Pulse Secure VPNs at US Defense Industrial Base (DIB) companies.
Detection coverage
- 73 Sigma rules
Malware & tools used
- Web Protocols (attack-pattern)
- Unix Shell (attack-pattern)
- Web Shell (attack-pattern)
- Standard Encoding (attack-pattern)
Used by threat actors
- APT5 (threat-actor)
Reports & references
- Mandiant — Suspected Apt Actors Leverage Bypass Techniques Pulse Secure Zero Day (report)
- MITRE ATT&CK — S1108 (report)