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Rev: 4 • Feb 15, 2014, 12:00 PMET INFO Generic HeapSpray Construct
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO Generic HeapSpray Construct"; flow:established,to_client; file_data; content:"<script"; nocase; content:"CollectGarbage"; distance:0; fast_pattern; content:"while"; pcre:"/^\s*?\([^\)]*?(?P<var>[^\.]+)\s*?\.\s*?length\s*<\s*(?:0?[0-9]{5,}|0x[a-z0-9]{3,})[^)]+\)\s*?\{\s*?(?P=var)\s*?=\s*?(?P=var)\s*?\+\s*?(?P=var)\s*?\}/Rsi"; content:"getElementsByClassName"; distance:0; content:"CollectGarbage"; distance:0; classtype:bad-unknown; sid:2018146; rev:4; metadata:created_at 2014_02_15, confidence Medium, signature_severity Informational, updated_at 2019_07_26;)
Feb 15, 2014, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-info.rules