text = "inforun 7970 12423 99 10:03 ? 00:09:03 abcd -PR -gmh domain.den.abc.com -gmp 6020 -guid 9c06cc02-b1c8-41cf-93e6-1d795e9fff62 -rst 180 -s FOLDER_NAME:wkf_workflow.s_session -something Session task instance [session]"
text =~ / ( ?< =\s) ( \d{ 2 } :\d{ 2 } ) ( ?=\s) .* ?( ?< =\s) ( ( ?:[ a- zA- Z\d] + ( ?:\- [ a- zA- Z\d] + ) * \.) + [ a- zA- Z] { 2 ,4 } ) ( ?=\s) .* ?( ?< =\s) ( [ a- zA- Z\d_] + ) :wkf_( [ a- zA- Z\d] + ) \.s_ ( [ a- zA- Z\d] + ) ( ?=\s) /
puts $~.captures
dGV4dCA9ICJpbmZvcnVuIDc5NzAgMTI0MjMgOTkgMTA6MDMgPyAwMDowOTowMyBhYmNkIC1QUiAtZ21oIGRvbWFpbi5kZW4uYWJjLmNvbSAtZ21wIDYwMjAgLWd1aWQgOWMwNmNjMDItYjFjOC00MWNmLTkzZTYtMWQ3OTVlOWZmZjYyIC1yc3QgMTgwIC1zIEZPTERFUl9OQU1FOndrZl93b3JrZmxvdy5zX3Nlc3Npb24gLXNvbWV0aGluZyBTZXNzaW9uIHRhc2sgaW5zdGFuY2UgW3Nlc3Npb25dIgp0ZXh0ID1+IC8oPzw9XHMpKFxkezJ9OlxkezJ9KSg/PVxzKS4qPyg/PD1ccykoKD86W2EtekEtWlxkXSsoPzpcLVthLXpBLVpcZF0rKSpcLikrW2EtekEtWl17Miw0fSkoPz1ccykuKj8oPzw9XHMpKFthLXpBLVpcZF9dKyk6d2tmXyhbYS16QS1aXGRdKylcLnNfKFthLXpBLVpcZF0rKSg/PVxzKS8KcHV0cyAkfi5jYXB0dXJlcw==