Green Lambert can collect data from a compromised host.3
tool
Green Lambert S0690
- Type
- malware
- Platforms
- Windows, iOS, macOS, Linux
- Created
- 21 March 2022
- Last modified
- 16 April 2025
Green Lambert is a modular backdoor that security researchers assess has been used by an advanced threat group referred to as Longhorn and The Lamberts. First reported in 2017, the Windows variant of Green Lambert may have been used as early as 2008; a macOS version was uploaded to a multiscanner service in September 2014.[1][2]
18
TechniquesTop 25%
8
TacticsTop 20%
0
Threat groupsNone recorded
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0690
Green Lambert can obtain proxy information from a victim's machine using system environment variables.45
Green Lambert has encrypted strings.67
Green Lambert has created a new executable named Software Update Check to appear legitimate.89
Green Lambert has been disguised as a Growl help file.1011
Green Lambert can add init.d and rc.d files in the /etc folder to establish persistence.1213
Standing S0690
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
Techniques18Top 25%
75th percentile · 75% 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 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.
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 / technique21med50th pct
50th percentile · 50% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique4med
Detection coverage S0690
390 distinct rules cover the 18 techniques recorded for this tool. The 409 technique-to-rule mappings resolve to 390 distinct rules, because one rule can cover several techniques. 288 Sigma · 102 Splunk.
18 covered by at least one rule390 distinct rules in total
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