Adobe's Unusual Hosts File Modification

If you're using Adobe Creative Cloud on Windows or macOS, you might be surprised to find that Adobe has made some unexpected changes to your hosts file. This modification is part of a peculiar method Adobe uses to determine if Creative Cloud is installed on your system when you visit their website. By adding specific entries to the hosts file, Adobe ensures that when you access their site, your browser attempts to load an image from a specific URL. If the DNS entry exists, the connection succeeds, confirming the presence of Creative Cloud; otherwise, it fails, signaling its absence.

Previously, Adobe employed a different technique, directly connecting to the Creative Cloud app via localhost. However, due to Chrome's restrictions on Local Network Access, they resorted to this hosts file workaround. This raises questions about the boundaries between legitimate software practices and potentially intrusive behavior, prompting some to wonder when commercial software crosses the line into malware territory.