Threat actor · all actors
Silent LibrarianG0122 state
🇮🇷 IR
aka Silent Librarian, TA407, COBALT DICKENS
Last updated: 2026-07-03
About this actor
[Silent Librarian](https://attack.mitre.org/groups/G0122) is a group that has targeted research and proprietary data at universities, government agencies, and private sector companies worldwide since at least 2013. Members of [Silent Librarian](https://attack.mitre.org/groups/G0122) are known to have been affiliated with the Iran-based Mabna Institute which has conducted cyber intrusions at the behest of the government of Iran, specifically the Islamic Revolutionary Guard Corps (IRGC).(Citation: DOJ Iran Indictments March 2018)(Citation: Phish Labs Silent Librarian)(Citation: Malwarebytes Silent Librarian October 2020)
Source: MITRE ATT&CK
Activity timeline
No activity events recorded.
Profile
| CVE | Risk | CVSS | EPSS | Published | Products |
|---|---|---|---|---|---|
| No attributed CVEs. | |||||
Mitigating controls (NIST 800-53)
| Control | Techniques covered | Coverage |
|---|---|---|
CM-6 | 7 / 20 | 35% |
SI-4 | 7 / 20 | 35% |
CA-7 | 5 / 20 | 25% |
CM-2 | 5 / 20 | 25% |
SC-7 | 5 / 20 | 25% |
AC-20 | 4 / 20 | 20% |
AC-3 | 4 / 20 | 20% |
AC-4 | 4 / 20 | 20% |
IA-2 | 4 / 20 | 20% |
IA-5 | 4 / 20 | 20% |
AC-2 | 3 / 20 | 15% |
AC-5 | 3 / 20 | 15% |
AC-6 | 3 / 20 | 15% |
AC-16 | 2 / 20 | 10% |
AC-17 | 2 / 20 | 10% |
Co-occurring actors
None.
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