24x7-allrequestsallowed.com - 146.185.239.100

BEGIN OF HTTP DATA:
2015-08-31 21:33:47
Source IP: 146.185.239.100
Country: RU RiskScore: 1 Malware: []
GET http://24x7-allrequestsallowed.com/?PHPSESSID=mg2adea600143P%5BVJWPHYCF%5DJOU HTTP/1.1
Host: 24x7-allrequestsallowed.com
Accept: */*
Proxy-Connection: Keep-Alive

I find these requests from time to time on my server. When executing the statement by hand it leads to:

curl http://24x7-allrequestsallowed.com/?PHPSESSID=mg2adea600143P%5BVJWPHYCF%5DJOU
Thank you for using our service

So it looks like a check to find servers which can connect to outside servers.

Blacklist Status	BLACKLISTED 3/40
IP Address	146.185.239.100 ( Websites Lookup )
Reverse DNS	Unknown
ASN	AS5577
ASN Owner	root SA
ISP	Petersburg Internet Network ltd.
Continent	Europe
Country Code	(RU) Russian Federation