Windigo
The Windigo group has been operating since at least 2011, compromising thousands of Linux and Unix servers using the Ebury SSH backdoor to create a spam botnet. Despite law enforcement intervention against the creators, Windigo operators continued updating Ebury through 2019.
- Known attack methods
- 7
- First seen
- 2011
- Source
- MITRE ATT&CK
How they break in
Techniques MITRE has documented this group using, mapped onto the ATT&CK matrix. Each one is a behaviour you can look for in your own logs, and a control you can test.
Reconnaissance
12 techniques
Resource Development
9 techniques
Initial Access
11 techniques · 1 used
Execution
20 techniques · 1 used
Persistence
22 techniques
Privilege Escalation
13 techniques
Stealth
30 techniques
Defense Impairment
18 techniques
Credential Access
17 techniques
Discovery
34 techniques · 3 used
Lateral Movement
9 techniques
Collection
17 techniques · 1 used
Command and Control
18 techniques · 1 used
Exfiltration
9 techniques
Impact
15 techniques
Initial access1
Execution1
Collection1
Command and control1
Malware
Families MITRE records this group deploying. Detection names for these are a reasonable place to start.