mirror of
https://github.com/SHOGGOTH-SECTOR/sica-fondt.git
synced 2026-08-01 08:30:20 +00:00
24f816b6a3
Place useful parts of the surrounding repos into sica-fondt by layer, per the
body model (Ada = membrane; brain/endocrine/capabilities/knowledge non-Ada):
- brain/ LLM reasoning + providers (dapr, hermes, MoMoA)
- capabilities/ REPRAG sidecars: hermes tools/skills, dapr tools, parallel
dispatch, A51 channels, and the OSINT cluster
- knowledge/ LORAG corpus: 754 cyber-skills, agency personas, secure-coding,
MITRE ATT&CK data
- reference/ defensive threat-reference (C3, shhbruh doc) + AdaYaml parser
License handling: AGPL sources (worldosint, advanced_evolution, mercury,
Reticulum) and GPL DeTTECT are SPEC-only clean-room/port descriptions — no
copyleft code copied. MIT/Apache/data parts copied as working trees.
Safety: shhbruh escape/persistence material and C3 covert-C2 kept as reference
only, not wired into the running organism. See CONSOLIDATION.md.
https://claude.ai/code/session_01UehUqEXXJJCsHoA4voCU5c
98 lines
2.2 KiB
Markdown
98 lines
2.2 KiB
Markdown
# API Reference: Stuxnet-Style ICS Attack Detection
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## Modbus TCP Protocol
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### Frame Structure
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| Offset | Size | Field |
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|--------|------|-------|
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| 0 | 2 | Transaction ID |
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| 2 | 2 | Protocol ID (0x0000) |
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| 4 | 2 | Length |
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| 6 | 1 | Unit ID |
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| 7 | 1 | Function Code |
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| 8+ | var | Data |
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### Write Function Codes (Attack-Relevant)
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| Code | Name | Risk |
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|------|------|------|
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| 5 | Write Single Coil | Medium |
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| 6 | Write Single Register | Medium |
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| 15 | Write Multiple Coils | High |
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| 16 | Write Multiple Registers | High |
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| 22 | Mask Write Register | High |
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## Siemens S7comm Protocol
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### S7 Parameter Functions
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| Code | Name |
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|------|------|
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| 0x04 | Read Variable |
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| 0x05 | Write Variable |
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| 0x1A | Request Download |
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| 0x1B | Download Block |
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| 0x1C | Download Ended |
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| 0x28 | PLC Control (Start/Stop) |
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## Wireshark/tshark Filters
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### Modbus write operations
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```bash
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tshark -r capture.pcap -Y "modbus.func_code >= 5 && modbus.func_code <= 16"
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```
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### S7comm block downloads
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```bash
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tshark -r capture.pcap -Y "s7comm.param.func == 0x1a || s7comm.param.func == 0x1b"
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```
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### S7comm PLC stop/start
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```bash
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tshark -r capture.pcap -Y "s7comm.param.func == 0x28"
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```
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## Stuxnet IOC Signatures
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### YARA Rule
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```yara
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rule Stuxnet_Driver {
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meta:
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description = "Stuxnet rootkit driver"
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strings:
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$mrxcls = "mrxcls.sys" ascii
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$mrxnet = "mrxnet.sys" ascii
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$mutex = "{A3BD0EA3-CD10-4258-8784-2F53E56E2010}"
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condition:
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any of them
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}
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```
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### Registry Keys
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```
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HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\MS-DOS Emulation
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HKLM\SYSTEM\CurrentControlSet\Services\MRxCls
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HKLM\SYSTEM\CurrentControlSet\Services\MRxNet
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```
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## Siemens Step 7 Project Structure
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### Organization Blocks
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| Block | Purpose |
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|-------|---------|
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| OB1 | Main program cycle |
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| OB35 | 100ms cyclic interrupt |
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| OB100 | Startup |
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### File Extensions
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| Extension | Content |
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|-----------|---------|
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| `.awl` | Statement List source |
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| `.mc7` | Compiled machine code |
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| `.s7p` | Project file |
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## Snort/Suricata Rules for ICS
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```
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alert tcp any any -> any 502 (msg:"Modbus Write Multiple Registers";
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content:"|00 00|"; offset:2; depth:2;
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byte_test:1,=,16,7; sid:1000001;)
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```
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