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 BlueSky/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

- 38.128.0.0/9

- 124.220.0.0/14

- 1.94.0.0/15

- 43.136.0.0/13

- 196.251.116.0/23

- 196.251.84.0/22

- 39.104.0.0/14

- 176.65.140.0/23

- 47.92.0.0/14

- 176.65.142.0/24


Dangerous Subnets

- 176.65.142.0/24

- 176.65.144.0/24

- 196.251.116.0/23

- 45.141.233.0/24

- 62.60.226.0/24

- 176.65.140.0/23

- 176.65.134.0/24

- 45.88.186.0/24

- 66.63.187.0/24

- 147.185.221.0/24


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