Versions (3)
Version DetailsCurrent
Rev: 1 • May 15, 2020, 12:00 PMET MALWARE GandCrab Style External IP Check (Spoofed Yahoo Host)
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE GandCrab Style External IP Check (Spoofed Yahoo Host)"; flow:established,to_server; http.start; content:"GET / HTTP/1.1|0d 0a|Host|3a 20|yahoo.com|0d 0a|User-Agent|3a 20|Mozilla/5.0 (Windows NT 6.1|3b 20|WOW64|3b 20|Trident/7.0|3b 20|rv|3a|11.0) like Gecko|0d 0a|Cache-Control|3a 20|no-cache|0d 0a 0d 0a|"; bsize:142; threshold:type both,track by_src, count 10, seconds 30; classtype:trojan-activity; sid:2030168; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_05_15, deployment Perimeter, malware_family GandCrab, confidence High, signature_severity Major, updated_at 2020_05_15;)
May 15, 2020, 12:00 PM
May 15, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 21, 2024, 3:00 AM
rules/emerging-malware.rules