""ET TROJAN Valyria Downloader Activity""
SID: 2033206
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_06_30, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, updated_at 2021_06_30
Reference:
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md5
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4f8c9ac36ca0268eb7c9ccec4f9d76f5
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
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Value: "|5c|Temp|5c|regles2.cmd|22|"
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Value: "|5c|Temp|5c|CMSTPBypass.exe"
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Value: "|5c|Temp|5c|regles.cmd"
Within:
PCRE:
Special Options:
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file_data
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fast_pattern