""ET WEB_CLIENT Tech Support Phone Scam Landing 2017-07-26""
SID: 2025909
Revision: 3
Class Type: trojan-activity
Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_07_26, deployment Perimeter, signature_severity Minor, tag Tech_Support_Scam, updated_at 2019_08_16
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: from_server,established
Contents:
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Value: "href=|22|./files/alert.css"
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Value: "<audio autoplay=|22|autoplay|22 20|loop=|22|"
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Value: ".mp3|22 20|type=|22|audio/mpeg"
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Value: "Internet Security Alert"
Within:
PCRE:
Special Options:
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file_data
-
nocase
-
nocase
-
fast_pattern
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nocase
-
nocase