FRAMESTING can send and receive zlib compressed data within POST requests.2
tool
FRAMESTING S1120
- Type
- malware
- Platform
- Network Devices
- Created
- 8 March 2024
- Last modified
- 15 April 2025
FRAMESTING is a Python web shell that was used during Cutting Edge to embed into an Ivanti Connect Secure Python package for command execution.[1]
7
Techniques33rd pct
4
Tactics32nd pct
0
Threat groupsNone recorded
1
Campaignunranked
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S1120
FRAMESTING uses a cookie named DSID to mimic the name of a cookie used by Ivanti Connect Secure appliances for maintaining VPN sessions.3
FRAMESTING is a Python web shell that can embed in the Ivanti Connect Secure CAV Python package.4
FRAMESTING can retrieve C2 commands from values stored in the DSID cookie from the current HTTP request or from decompressed zlib data within the request's POST data.5
FRAMESTING can decompress data received within POST requests.6
FRAMESTING is a web shell capable of enabling arbitrary command execution on compromised Ivanti Connect Secure VPNs.7
Standing S1120
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
Techniques733rd pct
33rd percentile · 67% of 825 ATT&CK software entries have more Enterprise techniques.
Tactics432nd pct
32nd percentile · 68% of 825 ATT&CK software entries have more tactics spanned.
Threat groups061% 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.
Campaign185% 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 / technique14med29th pct
29th percentile · 71% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique1med
Detection coverage S1120
160 distinct rules cover the 7 techniques recorded for this tool. 117 Sigma · 43 Splunk.
7 covered by at least one rule160 distinct rules in total
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