H1N1 uses multiple techniques to obfuscate strings, including XOR.2
tool
H1N1 S0132
- Type
- malware
- Platform
- Windows
- Created
- 31 May 2017
- Last modified
- 12 May 2026
H1N1 is a malware variant that has been distributed via a campaign using VBA macros to infect victims. Although it initially had only loader capabilities, it has evolved to include information-stealing functionality. [1]
13
Techniques57th pct
9
TacticsTop 11%
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 S0132
Standing S0132
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
Techniques1357th pct
57th percentile · 57% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics9Top 11%
89th percentile · 89% 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 / technique20med48th pct
48th percentile · 52% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique6med
Detection coverage S0132
740 distinct rules cover the 13 techniques recorded for this tool. The 753 technique-to-rule mappings resolve to 740 distinct rules, because one rule can cover several techniques. 509 Sigma · 231 Splunk.
10 covered by at least one rule3 with no coverage740 distinct rules in total
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