StreamEx obfuscates some commands by using statically programmed fragments of strings when starting a DLL. It also uses a one-byte xor against 0x91 to encode configuration data.2
tool
StreamEx S0142
- Type
- malware
- Platform
- Windows
- Created
- 31 May 2017
- Last modified
- 25 April 2025
StreamEx is a malware family that has been used by Deep Panda since at least 2015. In 2016, it was distributed via legitimate compromised Korean websites. [1]
9
Techniques44th pct
6
Tactics53rd pct
1
Threat groupunranked
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0142
Standing S0142
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
Techniques944th pct
44th percentile · 56% of 825 ATT&CK software entries have more Enterprise techniques.
Tactics653rd pct
53rd percentile · 53% of 825 ATT&CK software entries have this many tactics spanned or fewer.
Threat group161% 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 / technique61medTop 3%
97th percentile · 97% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique11med
Detection coverage S0142
571 distinct rules cover the 9 techniques recorded for this tool. The 588 technique-to-rule mappings resolve to 571 distinct rules, because one rule can cover several techniques. 405 Sigma · 166 Splunk.
9 covered by at least one rule571 distinct rules in total
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