P.A.S. Webshell has the ability to copy files on a compromised host.2
tool
P.A.S. Webshell S0598
- Type
- malware
- Platforms
- Linux, Windows
- Created
- 13 April 2021
- Last modified
- 25 April 2025
P.A.S. Webshell is a publicly available multifunctional PHP webshell in use since at least 2016 that provides remote access and execution on target web servers.[1]
15
Techniques66th pct
8
TacticsTop 20%
2
Threat groupsunranked
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0598
P.A.S. Webshell can use encryption and base64 encoding to hide strings and to enforce access control once deployed.3
P.A.S. Webshell can scan networks for open ports and listening services.4
P.A.S. Webshell has the ability to create reverse shells with Perl scripts.5
P.A.S. Webshell can delete scripts from a subdirectory of /tmp after they are run.6
P.A.S. Webshell can issue commands via HTTP POST.7
Standing S0598
Reach is how much of ATT&CK this tool touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 825 ATT&CK software entries only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.
Reach
Techniques1566th pct
66th percentile · 66% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics8Top 20%
80th percentile · 80% of 825 ATT&CK software entries have this many tactics spanned or fewer.
Threat groups261% tie · 22 values
61% of the population shares a single value across only 22 distinct values, so a percentile here would rank the tie, not the entity.
Campaigns085% tie · 8 values
85% of the population shares a single value across only 8 distinct values, so a percentile here would rank the tie, not the entity.
Coverage
Rules / technique29medTop 25%
75th percentile · 75% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique9med
Detection coverage S0598
656 distinct rules cover the 15 techniques recorded for this tool. The 688 technique-to-rule mappings resolve to 656 distinct rules, because one rule can cover several techniques. 469 Sigma · 187 Splunk.
14 covered by at least one rule1 with no coverage656 distinct rules in total
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