ET INFO Generic HeapSpray Construct

7.0.35.0SID: 2018146Rev: 5Enabled1 views
Sourceet/open
Fileemerging-info.rules
CreatedFebruary 15, 2014
UpdatedMarch 13, 2024
Classificationbad-unknown
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:5; metadata:created_at 2014_02_15, confidence Medium, signature_severity Informational, updated_at 2024_03_13;)

Metadata

created at2014_02_15
confidenceMedium
signature severityInformational
updated at2024_03_13

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