GOLD SOUTHFIELD is a financially motivated threat group active since at least 2018 that operates the REvil Ransomware-as-a Service (RaaS). GOLD SOUTHFIELD provides backend infrastructure for affiliates recruited on underground forums to perpetrate high value deployments. By early 2020, GOLD SOUTHFIELD started capitalizing on the new trend of stealing data and further extorting the victim to pay for their data to not get publicly leaked.[1][2][3][4]
9
Techniques30th pct
6
Tactics34th pct
2
Tools & malware39th pct
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
GOLD SOUTHFIELD has distributed ransomware by backdooring software installers via a strategic web compromise of the site hosting Italian WinRAR.101112
Initial Access25 detection rules
Standing G0115
Reach is how much of ATT&CK this group 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 176 ATT&CK groups 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
Techniques930th pct
30th percentile · 70% of 176 ATT&CK groups have more Enterprise techniques.
Tactics634th pct
34th percentile · 66% of 176 ATT&CK groups have more tactics spanned.
Tools & malware239th pct
39th percentile · 61% of 176 ATT&CK groups have more tools and malware.
Campaigns089% tie · 4 values
89% of the population shares a single value across only 4 distinct values, so a percentile here would rank the tie, not the entity.
Coverage
Rules / technique25med64th pct
64th percentile · 64% of 176 ATT&CK groups have this many detection rules per technique or fewer.
Tests / technique1medBottom 22%
22nd percentile · 78% of 176 ATT&CK groups have more atomic tests per technique.
Data comps / technique5med65% tie · 12 values
65% of the population shares a single value across only 12 distinct values, so a percentile here would rank the tie, not the entity.
Mitigations / technique5med43% tie · 11 values
43% of the population shares a single value across only 11 distinct values, so a percentile here would rank the tie, not the entity.
5 of 8 axes carry an honest rank on this page. Coverage medians are taken across this group’s 9 Enterprise techniques.
Range
Technique Campaign use over its cumulative rule count.
The following analytic identifies access to the /api/v1/configuration/users/user-roles/user-role/rest-userrole1/web/web-bookmarks/bookmark endpoint, which is associated with CVE-2023-46805 and CVE-2024-21887 vulnerabilities. (...)
The following analytic detects potential exploitation of the Adobe ColdFusion vulnerability, CVE-2023-26360, which allows unauthenticated arbitrary file read. (...)
Detects when AppLocker "Audit only" enforcement mode reports that an Application, DLL, Script, MSI, or Packaged-App would have been blocked if AppLocker "Enforce rules" enforcement mode was enabled.
Detects the Linux-specific execution chain of the plain-crypto-js malicious npm dependency by Axios NPM package, including payload download via curl and detached execution using nohup and python3. (...)
Detects the macOS-specific execution chain of the plain-crypto-js malicious npm dependency in Axios NPM Package, including AppleScript execution via osascript, payload download, permission modification, execution, and cleanup.
This analytic detects the creation or modification of network interfaces on Cisco devices, which could indicate an attacker establishing persistence or preparing for lateral movement. (...)
This analytic detects unexpected outbound network connections initiated by known webserver processes such as `httpd.exe`, `nginx.exe`, or `tomcat.exe` to common file sharing or public content hosting services like GitHub, Discord CDN, Transfer.sh, or Pastebin. (...)
The following analytic detects potential reverse shell activity by identifying connections involving ports commonly associated with remote access tools, shell listeners, or tunneling utilities. (...)
This correlation rule identifies potential exploitation attempts of Oracle E-Business Suite vulnerabilities (CVE-2025-61882 and CVE-2025-61884) by correlating multiple intrusion signatures from Cisco Secure Firewall Threat Defense logs. (...)
This analytic detects vulnerability exploitation and post-compromise activity associated with Oracle E-Business Suite web-application vulnerabilities, CVE-2025-61882 and CVE-2025-61884. (...)