SarlackLab C2 Tracking

Kicking ACKs and taking domain names

C2 Map Meta IOCs C2 Hunting Blog Posts Contact

Abused Parent-Domain Forest

Only domain trees from most common 8* C2 shown


Follow @SarlackLab on Twitter/Mastodon for daily updates on malicious servers
Map history and C2 trends available in /C2-Logs/ directory


The redder: a square appears, the more command-and-control (C2) servers are hosted in that /8 space.
XKCD has a comic explaining IPv4 Hilbert curves

Concerning Ranges

- 124.220.0.0/14

- 47.96.0.0/13

- 43.136.0.0/13

- 101.42.0.0/15

- 47.92.0.0/14

- 106.52.0.0/14

- 213.159.64.0/20

- 39.104.0.0/14

- 47.120.0.0/15

- 3.64.0.0/10


Dangerous Subnets

- 45.149.241.0/24

- 93.123.85.0/24

- 94.156.177.0/24

- 147.185.221.0/24

- 92.255.57.0/24

- 154.216.20.0/24

- 185.49.126.0/24

- 45.88.186.0/24

- 87.121.86.0/24

- 103.234.72.0/24


Heatmap of /8 Spaces Across IPv4


About Sarlack-Lab

I built the Sarlack to "devour malware in a sandbox". The server automatically grabbed and analyzed malware samples for personal research and to assist my SOC. While studying network detection trends, I began to notice patterns among malicious IP addresses and abused parent-domains. I created maps to visualize this threat landscape using the fantastic resources provided by abuse.ch, drb-ra, Dee, Fred HK, Benkow_, Good__Bear, and Paul Melson (as well as the IOCs that the Sarlack uncovers too).

Read more about Sarlack-Lab map generation here