tool

Nerex S0210

Type: malware
Platform: Windows
Created: 18 April 2018
Last modified: 17 November 2024

Nerex is a Trojan used by Elderwood to open a backdoor on compromised hosts. [1] [2]

TechniquesBottom 17%

Tactics32nd pct

Threat groupunranked

CampaignsNone recorded

Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.

MITRE reference S0210

Ingress Tool Transfer T1105↗

Nerex creates a backdoor through which remote attackers can download files onto a compromised host.3

Command and Control129 detection rules

Modify Registry T1112↗

Nerex creates a Registry subkey that registers a new service.4

Persistence · Defense Impairment175 detection rules

Windows Service T1543.003↗

Nerex creates a Registry subkey that registers a new service.5

Persistence · Privilege Escalation73 detection rules

Code Signing T1553.002↗

Nerex drops a signed Microsoft DLL to disk.6

Defense Impairment1 detection rules

Standing S0210

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

Techniques4Bottom 17%

17th percentile · 83% of 825 ATT&CK software entries have more Enterprise techniques.

Tactics432nd pct

32nd percentile · 68% of 825 ATT&CK software entries have more tactics spanned.

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 / technique101medTop 1%

99th percentile · 99% of 825 ATT&CK software entries have this many detection rules per technique or fewer.

Tests / technique22.5med

Detection coverage S0210

374 distinct rules cover the 4 techniques recorded for this tool. The 378 technique-to-rule mappings resolve to 374 distinct rules, because one rule can cover several techniques. 231 Sigma · 143 Splunk.

4 covered by at least one rule374 distinct rules in total

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MITRE reference S0210

Reach

Coverage

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