US Bank says that it's investigating ransomware crew LockBit’s claims that it breached the financial institution and stole data, which the crims threaten to leak on September 3 unless the bank pays an extortion demand. "We have investigated this matter and the available evidence indicates that the claim regarding a potential cyber incident is... Weiterlesen
Intelligence View
US Bank investigates LockBit's claims as ransomware crims set pay-or-leak deadline
US Bank says that it's investigating ransomware crew LockBit’s claims that it breached the financial institution and stole data, which the crims threaten to leak on September 3 unless the bank pays an extortion demand. "We have i…
SOC Incident Playbook: Ransomware Outbreak Containment
title: Detect Exploitation - US Bank investigates LockBit's claims as ransomware crims set pay-or-leak deadline
id: 5839df92-2c63-4828-a8e8-4c5bcac5e0a4
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-25
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_access
- attack.t1486rule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-25"
description = "YARA Signature for "
strings:
$str = "US Bank investigates LockBit\'s" ascii wide
condition:
any of them
}index=security sourcetype IN ("cisco:asa", "pan:traffic", "zeek_conn", "suricata", "WinEventLog:Security")
("US Bank investigates LockBits claims as ")
| stats count earliest(_time) as first_seen latest(_time) as last_seen by src_ip, dest_ip, dest_host, signature
| eval first_seen=strftime(first_seen, "%Y-%m-%d %H:%M:%S"), last_seen=strftime(last_seen, "%Y-%m-%d %H:%M:%S")
| sort - countmessage: "*US Bank investigates LockBits claims as *"CommonSecurityLog
| where Message has "US Bank investigates LockBits claims as "
| summarize EventCount = count(), FirstSeen = min(TimeGenerated), LastSeen = max(TimeGenerated) by SourceIP, DestinationIP, DestinationPort, Activity
| extend DetectionRule = "iShareStuff-CTI-Compiled"
| sort by EventCount descMITRE ATT&CK Matrix Navigator 14 Taktiken
tsecurity.de Cognitive Threat RAG
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich US Bank investigates LockBit's claims as.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
- 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
- 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
- 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
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