Blockade Spider
BLOCKADE SPIDER is a CrowdStrike-tracked eCrime threat actor active since at least April 2024 and associated with Embargo ransomware campaigns. The group is described as financially motivated and is known for sophisticated cross-domain attack techniques. Reported activity includes initial access via unmanaged VPN infrastructure, attempts to dump credentials from Veeam Backup & Replication configuration databases, deletion of backup files, and repeated attempts to interfere with CrowdStrike Falcon. CrowdStrike also reported that BLOCKADE SPIDER used the OrBit Linux backdoor/rootkit to maintain persistence and stealthy access in VMware virtualization environments. The content identifies BLOCKADE SPIDER as targeting cloud and virtualized environments and as operating across multiple domains to evade detection. No additional high-confidence aliases or sub-groups are provided beyond the lowercase variant blockade_spider.
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Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
Tradecraft
6 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
Associated malware families
3 malware families attributed to this actor across reporting.
Observables
24 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
Recent activity
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
eCrime group associated with Embargo ransomware that used the OrBit rootkit to maintain covert persistence in VMware virtualization environments.
eCrime adversary active since at least 2024 that uses the OrBit backdoor for persistence and stealthy access in virtualization environments to support Embargo ransomware operations.
Referenced as a China-backed threat actor noted for targeting unmanaged devices (e.g., VPNs, firewall appliances, personal devices, webcams, third-party apps, VMs) that often lack EDR coverage.
Blockade Spider conducts ransomware and data theft operations using Embargo ransomware, targeting unmanaged systems and cloud environments, and employing cross-domain lateral movement.
The version that knows your environment.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.