Torisma is a second stage implant designed for specialized monitoring that has been used by Lazarus Group. Torisma was discovered during an investigation into the 2020 Operation North Star campaign that targeted the defense sector.[1]
13
Techniques57th pct
5
Tactics41st pct
0
Threat groupsvia campaign only
1
Campaignunranked
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
Torisma can use HTTP and HTTPS for C2 communications.7
Command and Control60 detection rules
Standing S0678
Reach is how much of ATT&CK this malware 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
Techniques1357th pct
57th percentile · 57% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics541st pct
41st percentile · 59% of 825 ATT&CK software entries have more tactics spanned.
Threat groups061% 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.
Campaign185% 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 / technique5medBottom 7%
7th percentile · 93% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique4med
Torisma detections S0678
156 distinct rules cover the 13 techniques recorded for this malware. 107 Sigma · 49 Splunk.
11 covered by at least one rule2 with no coverage156 distinct rules in total
Showing 1-50 of 100+ rules
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MITRE ATT&CK
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Detects suspicious user agent strings used in APT malware in proxy logs
The following analytic detects the use of CertUtil.exe with the 'decode' argument, which may indicate an attempt to decode a previously encoded file, potentially containing malicious payloads. (...)
Adversaries may communicate using application layer protocols associated with web traffic to avoid detection/network filtering by blending in with existing traffic. (...)
This analytic detects the usage of the Utility osascript on a macOS device initiated a network connection lasting longer than 10 minutes (600 seconds). (...)
The following analytic detects the use of known suspicious SSL certificates in any observed event where the SSL_CertFingerprint field is present. (...)
The following analytic detects connections with a high Encrypted Visibility Engine (EVE) threat confidence score, indicating potentially malicious behavior within encrypted traffic. (...)
The following analytic detects potentially suspicious large volumes of data sent by the connection initiator on flows from internal to external networks. (...)
frack113, Christopher Peacock '@securepeacock', SCYTHE '@scythe_io'
2021-12-07
2025-10-18
0e4164da-94bc-450d-a7be-a4b176179f1f
Splunk
The following analytic identifies the execution of `powershell.exe` with the `Get-NetTcpConnection` command, which lists current TCP connections on a system. (...)
The following analytic detects the execution of the `Get-NetTcpconnection` PowerShell cmdlet using PowerShell Script Block Logging (EventCode=4104). (...)