tool

RGDoor S0258

Type: malware
Platform: Windows
Created: 17 October 2018
Last modified: 25 April 2025

RGDoor is a malicious Internet Information Services (IIS) backdoor developed in the C++ language. RGDoor has been seen deployed on webservers belonging to the Middle East government organizations. RGDoor provides backdoor access to compromised IIS servers. [1]

Techniques33rd pct

Tactics53rd 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 S0258

System Owner/User Discovery T1033↗

RGDoor executes the whoami on the victim’s machine.2

Discovery47 detection rules

Windows Command Shell T1059.003↗

RGDoor uses cmd.exe to execute commands on the victim’s machine.3

Execution61 detection rules

Web Protocols T1071.001↗

RGDoor uses HTTP for C2 communications.4

Command and Control57 detection rules

Ingress Tool Transfer T1105↗

RGDoor uploads and downloads files to and from the victim’s machine.5

Command and Control129 detection rules

Deobfuscate/Decode Files or Information T1140↗

RGDoor decodes Base64 strings and decrypts strings using a custom XOR algorithm.6

Stealth20 detection rules

IIS Components T1505.004↗

RGDoor establishes persistence on webservers as an IIS module.7 8

Persistence15 detection rules

Standing S0258

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

Techniques733rd pct

33rd percentile · 67% 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 / technique47medTop 9%

91st percentile · 91% of 825 ATT&CK software entries have this many detection rules per technique or fewer.

Tests / technique6med

Detection coverage S0258

323 distinct rules cover the 7 techniques recorded for this tool. The 329 technique-to-rule mappings resolve to 323 distinct rules, because one rule can cover several techniques. 226 Sigma · 97 Splunk.

6 covered by at least one rule1 with no coverage323 distinct rules in total

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MITRE reference S0258

Reach

Coverage

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