WannaCry will attempt to determine the local network segment it is a part of.5
tool
WannaCry S0366
- Type
- malware
- Platform
- Windows
- Created
- 25 March 2019
- Last modified
- 9 December 2024
WannaCry is ransomware that was first seen in a global attack during May 2017, which affected more than 150 countries. It contains worm-like features to spread itself across a computer network using the SMBv1 exploit EternalBlue.[1][2][3][4]
16
Techniques70th pct
9
TacticsTop 11%
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 S0366
WannaCry scans its local network segment for remote systems to try to exploit and copy itself to.6
WannaCry searches for variety of user files by file extension before encrypting them using RSA and AES, including Office, PDF, image, audio, video, source code, archive/compression format, and key and certificate files.1011
WannaCry contains a thread that will attempt to scan for new attached drives every few seconds. If one is identified, it will encrypt the files on the attached device.13
Standing S0366
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
Techniques1670th pct
70th percentile · 70% 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 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 / technique24.5med58th pct
58th percentile · 58% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique7med
Detection coverage S0366
413 distinct rules cover the 16 techniques recorded for this tool. The 428 technique-to-rule mappings resolve to 413 distinct rules, because one rule can cover several techniques. 258 Sigma · 155 Splunk.
16 covered by at least one rule413 distinct rules in total
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