ZLib has the ability to discover and manipulate Windows services.2
tool
ZLib S0086
- Type
- malware
- Platform
- Windows
- Created
- 31 May 2017
- Last modified
- 16 April 2025
ZLib is a full-featured backdoor that was used as a second-stage implant during Operation Dust Storm since at least 2014. ZLib is malware and should not be confused with the legitimate compression library from which its name is derived.[1]
11
Techniques51st pct
8
TacticsTop 20%
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 S0086
Standing S0086
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
Techniques1151st pct
51st percentile · 51% 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.
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 / technique29medTop 25%
75th percentile · 75% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique6med
Detection coverage S0086
460 distinct rules cover the 11 techniques recorded for this tool. The 474 technique-to-rule mappings resolve to 460 distinct rules, because one rule can cover several techniques. 327 Sigma · 133 Splunk.
10 covered by at least one rule1 with no coverage460 distinct rules in total
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