tool
Chinoxy S1041
- Type
- malware
- Platform
- Windows
- Created
- 21 September 2022
- Last modified
- 11 April 2024
Chinoxy is a backdoor that has been used since at least November 2018, during the FunnyDream campaign, to gain persistence and drop additional payloads. According to security researchers, Chinoxy has been used by Chinese-speaking threat actors.[1]
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S1041
Chinoxy has used the name eoffice.exe in attempt to appear as a legitimate file.3
The Chinoxy dropping function can initiate decryption of its config file.4
Chinoxy has established persistence via the HKCU\Software\Microsoft\Windows\CurrentVersion\Run registry key and by loading a dropper to (%COMMON_ STARTUP%\\eoffice.exe).5
Chinoxy can use a digitally signed binary ("Logitech Bluetooth Wizard Host Process") to load its dll into memory.6
Standing S1041
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
23rd percentile · 77% of 825 ATT&CK software entries have more Enterprise techniques.
32nd percentile · 68% of 825 ATT&CK software entries have more tactics spanned.
61% of the population shares a single value across only 22 distinct values, so a percentile here would rank the tie, not the entity.
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
68th percentile · 68% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Detection coverage S1041
203 distinct rules cover the 5 techniques recorded for this tool. The 204 technique-to-rule mappings resolve to 203 distinct rules, because one rule can cover several techniques. 171 Sigma · 32 Splunk.
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