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Sysdig Secure ã¯ãæªããæåãæ€ç¥ããé¢é£ããæ€ç¥ãçžé¢åæã㊠Threat ã«ãŸãšããŸãããããŠãSysdig Secure ã® AutomationïŒèªååã®æ©èœïŒã«ãæ°ãã Threat ãã§ããã Slack ã® #threats ã«æçš¿ããããšããèšå®ãããŠãããããThreat ãã§ãããã³ã«éç¥ãå±ããŸãããããéç¥ã¯ãäœããèµ·ããããšç¥ãããã ãã§ããããæ»æãªã®ãæ€èšŒãªã®ããã©ããŸã§åœ±é¿ããã®ãã¯ã人ã Sysdig ã®ç»é¢ãäœæãéããŠèª¿ã¹ãå¿
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3.1 ç°å¢ã®å šäœåïŒã©ãã§ãäœãåããŠããã
å³ 2ããã¹ãç°å¢ã®å šäœåã2026-10-18 æç¹ã®é 眮ããkubectlã»Factoryã»Slack ã®èšé²ã§ç¢ºãããŠæããã
ãã¹ãã®èå°ã¯ã倧ãã 2 ã€ã«åãããŸããäžã®åž¯ãã€ã³ã¿ãŒãããäžã®ãµãŒãã¹ïŒSaaSïŒãäžã®åž¯ã TK ã®èªå® ã©ãã§ãã
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| SlackïŒã¯ãŒã¯ã¹ããŒã¹ tk-labïŒ |
#threats ã«éç¥ãå±ãã#dr ã«èŠçŽãå±ããTK ã ð ãä»ããå Žæ |
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| GitHub | æé æžãšããã³ããïŒtk-team-homeïŒããããã§ã¹ãïŒhome-nucïŒãreaction bot ã® imageïŒghcr.ioïŒã眮ã |
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nuc-home㯠NUC 4 å°ïŒnuc1ãnuc4ïŒã§ã§ããŠããŸããKubernetes v1.32.7ãUbuntu 22.04.5 LTSãDocker 28.3.2ããããã¯ãŒã¯ã¯ Calico ã§ããå¶åŸ¡ãã¬ãŒã³ïŒkube-apiserverã»etcd ãªã©ïŒã¯ nuc1 ã§åããŸãã -
Sysdig ãšãŒãžã§ã³ãïŒ
sysdigåå空éïŒã¯ãshield-host ã 4 å°ãã¹ãŠã« 1 ã€ãã€ãshield-cluster ã 2 ã€åããŠããŸãã -
reaction botïŒ
security-toolsåå空éïŒã¯ãnuc3 ãš nuc4 ã« 1 ã€ãã€ãèš 2 ã€åããŠããŸãã2 ã€ã¯åãåããããSlack 㯠1 ã€ã® ð ãã©ã¡ããäžæ¹ã«å±ããŸããä»åã®ãã¹ãã® ð 㯠nuc4 ã® bot ãåãåããŸããã -
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åå空éããšã«ãéä¿¡ã®ç¯å²ã NetworkPolicy ã§çµã£ãŠããŸããreaction bot ã®å€åãé信㯠DNS ãšã€ã³ã¿ãŒãããã® 443 çªã ãã§ãå®¶ã®äžã®å¥ã®æ©åšã«ã¯åºãããŸãããæ»æã®æš¡æ¬ã® Pod ã¯ãåãåå空éãš DNS ã«ããåºãããŸããããæ»æè 圹ããæ¬åœã«å€ãžäœããéãããšã¯ã§ããªãäœãã§ãã
å³ 2 ã®å³ç«¯ã«ãããšãããå®¶ã®äžã«åãå£ãéããŠããªãããšãããã®æ§æã®ç¹åŸŽã§ããSysdig ãšãŒãžã§ã³ãããreaction bot ããtk-mini2 ããèªåããå€ã®ãµãŒãã¹ãžæ¥ç¶ããŸããreaction bot ã Slack ã® Socket Mode ã䜿ãã®ã¯ãã®ããã§ãSlack ããã®åŒã³åºããå®¶ã®äžã§åŸ ã¡åããå¿ èŠããããŸãããtk-mini2 ãåãã§ããFactory ã®ææžã«ãããšãRemote Control 㯠Factory ã®äžç¶ãµãŒãã¹ïŒrelayïŒãéããŠã€ãªãããããåãå£ã®ããŒããéããå¿ èŠããããŸããã
3.2 åŠçã®æµãïŒã ãããäœãåãæã€ã
å³ 3ãåŠçã®æµããäžžæ°åã¯ä»åã®ãã¹ãã§å®éã«èµ·ããé çªãè²ã¯æã¡äž»ã衚ãã
å³ 2 ããã©ãã«ãããããªããå³ 3 ã¯ãã©ã®é ã«åãããã§ãã3 ã€ã®åž¯ã«åãããŠããŸããäžã®åž¯ããæ€ç¥ããŠç¥ãããããäžã®åž¯ããð ã§èµ·åãã調ã¹ãããäžã®åž¯ããå ±åãããã§ãã
| # | æ ãæ | åãæã€ããš |
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| â ã⢠| Sysdig ãšãŒãžã§ã³ãïŒshield-hostïŒ | ã³ã³ããã®äžã®æåãã·ã¹ãã ã³ãŒã«ã§èŠåŒµããSysdig Secure ãžéã |
| â¢ã⣠| Sysdig Secure ã® Threats engine ãš Automation | æ€ç¥ãçžé¢åæã㊠Threat ã«æãããNew Threatãã§ Slack ã«éç¥ãã |
| †| TK | éç¥ãèªã¿ã調ã¹ãããã®ã« ð ãä»ãã |
| â¥ã⊠| reaction bot | ð ãåãåãããã£ã³ãã«ã»æçš¿è
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§åããŠããã眲åã€ã webhook ãéããã¹ã¬ããã«åä»ã®ãç¥ãããæžãïŒimage sha-a510b15fïŒ |
| âŠãâ§ | Factory webhook automation | 眲åã確ãããæ¬æããã£ã«ã¿ãŒïŒ"source": "tk-sysdig-reaction-bot"ïŒã§ç
§åããå®è¡ã tk-mini2 ã«å²ãåœãŠãã1 æé 10 åãŸã§ |
| â§ã⪠| Factory ã® DroidïŒtk-mini2 ã§åãïŒ | 調æ»ã®æé æžïŒSKILLïŒã«æ²¿ã£ãŠ 9 ã¿ã¹ã¯ãå®è¡ãSysdig MCPã»kubectlã»äœæ¥èšé²ãèªãã ããå ±åãã¹ã¬ãããš #dr ã«æçš¿ |
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sourceã»channelã»message_tsã ãã§ãã»ãã®é ç®ã¯åèã«ãšã©ããŸããæ¬æã¯ã蚌æ ããŒã¿ããšããŠæ±ããäžã«åœä»€ãæžãããŠããŠãåŸããŸãããchannelãšmessage_tsãèš±å¯ãªã¹ããšç §åããããšãéç¥ã®æ¬æã¯ Slack ãããThreat ã®è©³çŽ°ã¯ Sysdig ãããèªåã§åãçŽããŸããã ãããåœã®æ¬æãéã£ãŠããåœã®å 容ã®ãŸãŸèª¿æ»ãé²ãããšã¯ãããŸããã - 調æ»ã¯èªã¿åãã ãã hooks ãæžã蟌ã¿ç³»ã®æäœãæ¢ããŸããPod ã®åæ¢ãéé¢ãšãã£ã察åŠã¯ãä»åã®ãã¹ãã®ç¯å²ã«å ¥ããŠããŸããïŒ6.3ïŒã
4. ãã¹ãã®å®æ³ïŒ16:12 ãã 16:35 ãŸã§
ããããã¯ãä»åã®ãã¹ããæéã®é ã«ãã©ããŸãããŸãå šäœã®æµãã 1 æã§èŠãŠãããŸãã
å³ 4ãä»åã®ãã¹ãã®æç³»åãæå»ã¯ Slack ã®æçš¿æå»ãreaction bot ã®ãã°ãFactory ã®é ä¿¡èšé²ãSysdig ã®æ€ç¥èšé²ããåã£ãã
Sysdig ã®ã«ãŒã«ã¯ãæäœããæ°ç§ä»¥å ã«æ€ç¥ããŠããŸãããã®ããš Sysdig ãæ€ç¥ãçžé¢åæã㊠1 ã€ã® Threat ã«ãŸãšããéç¥ãããŸã§ãçŽ 11 åã人ãéç¥ãèªãã§ ð ãä»ãããŸã§ãçŽ 4 åãFactory ã® Droid ã«ããèªå調æ»ãçŽ 7 åã§ããçãäžã® 4 åã ããäººã®æéã§ãð ãä»ããŸã§èªåã§ã¯äœãå§ãŸããŸããã調ã¹ããã©ããã¯ãäººãæ±ºããŸãã
4.1 æ»æã®æš¡æ¬ãšãSysdig ã®æ€ç¥
16:12:36ãthreat-e2e-2 åå空éã« Pod attack-sim-c ãäœãããŸãããäžèº«ã¯ sleep ã ãã® alpine ã³ã³ããã§ãããã®åŸã®çŽ 30 ç§ã§ãå€ãã 4 åã®ã³ãã³ãå®è¡ïŒkubectl execïŒãå±ããæ»æè
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cat /etc/shadowïŒãã¹ã¯ãŒãæ å ±ã®ãã¡ã€ã«ã®èªã¿åãïŒãšnc 127.0.0.1 4444ïŒéä¿¡ããŒã«ã§ã®æ¥ç¶ã®è©Šã¿ïŒãåããŸããã - 次ã®
execã§pkill -f '^sh /tmp/falco$'ãèµ°ãããã®falcoãæ¢ããŸãããSysdig ã¯ããããã»ãã¥ãªãã£ãœãããžã®åŠšå®³ããšèŠãŠãHigh ãä»ããŠããŸãã
ããã«ä»æãããããŸããæ¢ãããã falco ã¯æ¬ç©ã® Falco ã§ã¯ãªããåãå°æ¬ãçŽåã«äœã£ãåœç©ïŒäžèº«ã¯ sleep 3600ïŒã§ããæ¬ç©ãæ¢ããã«ããæ¢ããããšãããæåã ããåçŸããŠããŸãã
æåŸã®æ€ç¥ïŒLast Rules OccurrenceïŒãäžãã€ãã³ãã®äžèЧãäžã Kubernetes ã®æäœèšé²ïŒActivity AuditïŒã
äžã®ã€ãã³ãäžèЧã§ã¯ã16:13:03 ãš 16:13:15 ã® HighïŒã»ãã¥ãªãã£ãœãããžã®åŠšå®³ïŒãMediumïŒäžæé åããã®å®è¡ããã¹ã¯ãŒãæ
å ±ã®èªã¿åãïŒãInfoïŒéä¿¡ããŒã«ã®èµ·åïŒã䞊ã³ãŸããäžã® Activity Audit ã«ã¯ãkubernetes-admin ã«ãã kube exec ã 16:12:45ã16:12:59ã16:13:03ã16:13:14 ã® 4 åèšé²ãããŠããŸãããã® 4 åããåŸã§èª¿æ»ã® T4 ãã€ãããã©ãããæäœãããããã®çãã«ãªããŸãã
Threat å šäœã®éèšãã«ãŒã« 4 ã€ãOccurrence 1 ã€ãæåã®æ€ç¥ã 4:12:45 pmãæåŸã 4:13:16 pmã
Threats in EvaluationïŒè©äŸ¡äžã® ThreatïŒã®ç»é¢ããã¹ã nuc4 ã®åäœã§ã2 ã€ã® Malicious 㪠ThreatïŒFalco Tampering⊠㚠Recon CredentialâŠïŒãæããããŠããã
ãã® 2 æã䞊ã¹ããšãID ã 2 çš®é¡ããããšã«æ°ã¥ããŸããäžã® Threat 詳现㮠ID 㯠01a14de5-âŠãäžã® Threats in EvaluationïŒãš Slack ã®éç¥ïŒã«åºã ID 㯠01a14ddb-⊠ã§ãã調æ»ã®æçµå ±åã¯ãåºå
ž S1 ã§ãThreat 01a14de5ïŒoccurrence 01a14ddbïŒããšäž¡è
ãçµã³ä»ããŠããŸãïŒoccurrence ã¯ãThreat ã®äžã®çºçã®èšé²ã§ãïŒãSlack ã®éç¥ã®ç»é¢ã«åºããThreat IDãã¯ããã® occurrence ã® ID ã§ãã
Sysdig ã® AutomationãNew Automation Oct 11ãã®å®è¡èšé²ããNew ThreatããåããŠãSend Slack 1ãïŒ#threatsïŒãå®è¡ãããå³åŽã®å€æ°ã¯ããã®ç»é¢ã§éžãã§ããå¥ã®å®è¡ïŒthreat-e2e / attack-simïŒã®ãã®ã
Sysdig ãã Slack ãžã®éç¥ã¯ããã® Automation ã®èšå®ã§éãããŸããSysdig ãäœãããªããŠã Slack ã«æçš¿ããããã§ã¯ãªãããNew ThreatïŒæ°ãã ThreatïŒãèµ·ããã Slack ã«æçš¿ããããšãã 2 ã€ã®ç®±ã ãã®èšå®ãããŠãããããéç¥ãå±ããŸãã
4.2 æ€ç¥ããéç¥ãŸã§ïŒSysdig ãè¡ãçžé¢åæ
Sysdig ã®æ€ç¥ãã®ãã®ã¯ãæäœããæ°ç§ä»¥å ã§ãã 4.1 ã®ç»é¢ïŒThreat å šäœã®éèšãšãæåŸã®æ€ç¥ã®ã€ãã³ããš Activity AuditïŒã§ãKubernetes ã®æäœèšé²ãšã«ãŒã«ã®æ€ç¥ã®æå»ã䞊ã¹ããšã次ã®ããã«ãªããŸãã
æäœïŒActivity Audit ã® kube execïŒ |
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|---|---|---|
| 16:12:45ã1 åç® | 16:12:45ãThreat ã®æåã®æ€ç¥ | 0 ç§ |
| 16:13:03ã3 åç®ïŒåœã® falco ã pkillïŒ | 16:13:03ãHighãã»ãã¥ãªãã£ãœãããžã®åŠšå®³ã | 0 ç§ |
| 16:13:14ã4 åç® | 16:13:14ã16:13:16ãæ®ãã®ã«ãŒã« | 0ã2 ç§ |
Falco ã®ã«ãŒã«ãã·ã¹ãã ã³ãŒã«ãèŠåŒµããæäœãèµ·ããç¬éã«åå¿ããŠããŸããé ãã®ã¯æ€ç¥ã§ã¯ãããŸããã
ã§ã¯ãéç¥ãŸã§ã®çŽ 11 åã¯äœã«äœ¿ãããã®ã§ãããããSysdig ã®èšé²ã䜿ããšãSysdig ã®äžã§èµ·ããããšãæå»ã€ãã§ 4 ã€ã®æ®µéã«åããããŸãã
| 段é | æå» | èšé² |
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| â æåã®æ€ç¥ã§ãçºçã®èšé²ïŒoccurrenceïŒãäœããã | 16:12:45.685 | occurrence ã® startTimeãoccurrence ã® IDïŒ01a14ddb-âŠïŒã«åã蟌ãŸããæå»ãåã |
| â¡ æåŸã®æ€ç¥ | 16:13:16.300 | occurrence ã® lastSignal
|
| ⢠è©äŸ¡ãçµãããThreat ãäœããã | 16:24:24.953 | Threat ã® IDïŒ01a14de5-âŠïŒã«åã蟌ãŸããæå» |
⣠Automation ã #threats ã«éç¥ãã |
16:24:27 | Slack ã®æçš¿æå»ïŒâ¢ ã® 2 ç§åŸïŒ |
Sysdig ã®ãããã® ID 㯠UUID ã®ç¬¬ 7 çïŒUUIDv7ïŒã§ãå
é ã«ãäœãããæå»ãããªç§ã§æã£ãŠããŸããoccurrence ã® ID ã®æå»ã startTime ãšããªç§ãŸã§äžèŽããã®ã§ããã®èªã¿æ¹ã§æ£ããããšã確ãããããŸãã
ãã®è¡šãããçŽ 11 åã®ã»ãšãã©ïŒâ¡ ãã ⢠ãŸã§ã® 11 å 8 ç§ïŒã¯ãThreat ãäœããŸã§ã®è©äŸ¡ã®æéã ãšããããŸããAutomation ãéç¥ãéã£ãã®ã¯ãThreat ãã§ããŠãã 2 ç§åŸã§ãã
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- åãçžæãïŒEntity MatchingïŒïŒåãã³ã³ãããåããã¹ããåãã¯ã©ãŠãã®ãŠãŒã¶ãŒã«ããããæ€ç¥ããŸãšããã
- æéãè¿ããïŒTime ProximityïŒïŒæ±ºãŸã£ãæéã®çªã®äžã§ç¶ããæ€ç¥ããŸãšããã
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ããã«ãåãå Žæã§åãæåãç¹°ãè¿ããããšã1 ã€ã® occurrence ã«ãŸãšããããŸãã
ä»åã¯ãåã Pod ã§çŽ 30 ç§ã®ããã ã«èµ·ãã 4 ã€ã®ã«ãŒã«ã»åèš 8 åã®æ€ç¥ã 1 ã€ã® occurrence ã«å
¥ããè©äŸ¡ã®çµæã1 ã€ã® ThreatãFalco Tampering and Credential Accessãã«ãªããŸãããSysdig ã®èšé²ã«ã¯ãè©äŸ¡ã®çµæãšããŠãåé¡ïŒMALICIOUSïŒã確信床ïŒMEDIUMïŒãpromotionTags ã® HighïŒHigh ã®æ€ç¥ãå«ãããšãææžã®ãHigh ã®æ€ç¥ã¯å¿
ã Threat ãäœãããšåãïŒãSysdig ã® AIïŒSysdig SageïŒãä»ããååãšèª¬æãæ®ã£ãŠããŸãã8 åã°ãã°ãã«éç¥ãæ¥ãã®ã§ã¯ãªããã1 ã€ã®æ»æã®æµãããšã㊠1 éã§å±ããããã§ãã
Sysdig ã®ææžã«ã¯ãè©äŸ¡ã«ãããæéã®é·ãã¯æžãããŠããŸãããèšããã®ã¯ãä»åã®å®æž¬ã 11 å 8 ç§ã ã£ããšããäºå®ã§ãããã®æéã¯ããã€ãºãæžãããŠäººãèªãéç¥ã 1 éã«ããããã®ãã®ã§ããã¡ãã®ä»çµã¿ã§ã¯çž®ããããŸããã
4.3 éç¥ã #threats ã«å±ã
#threats ã«å±ããéç¥ã®å
šäœãResourceïŒnuc-homeã»nuc4ã»threat-e2e-2ã»attack-sim-cïŒãStatusãSourceãImageãåå¿ããã«ãŒã« 4 ã€ã䞊ã¶ã
16:24:27ãçžé¢åæãçµãã Threat ã®éç¥ã #threats ã«å±ããŸããã
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éç¥ã®é¡åã¯ãThreat created with name 'Falco Tampering and Credential Access'ãã§ããTK ã¯ããã« ð ãä»ããŸããã
4.4 ð ããã調æ»ã®éå§ãŸã§
ð ãä»ããç¬éãããæ¬¡ã® 3 ã€ã 1 ç§ä»¥å ã«èµ·ããŸããïŒreaction bot ã®ãã°ãš Factory ã®é ä¿¡èšé²ããïŒã
| æå»ïŒJSTïŒ | èµ·ããããš | èšé² |
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| 16:28:52.232 | Factory ãé ä¿¡ãåãä»ããå®è¡ã«åãïŒ290 ãã€ãã»DispatchedïŒ | Factory ã®é ä¿¡èšé² |
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