""ET TROJAN Observed TA399/Sidewinder APT Domain (mod-gov-bd .dowmload .co in TLS SNI)""
SID: 2055126
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2024_08_08, deployment Perimeter, signature_severity Major, tag Sidewinder, tag TA399, updated_at 2024_08_08
Reference:
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md5
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43d35b5b20f491be219ab2eaa172ec55
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 443
Flow: established,to_server
Contents:
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Value: "|16|"
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Value: "|01|"
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Value: "|00 00|"
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Value: "|00|"
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Value: "mod-gov-bd.dowmload.co"
Within: 1
PCRE: "/^(?:\x00\x16|.\x2e)mod-gov-bd.dowmload.co/R"
Special Options: