""ET TROJAN Win32/Alpha Stealer v1.5 PWS Exfil via HTTP""
SID: 2027917
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_08_26, deployment Perimeter, malware_family Alpha_Stealer, performance_impact Moderate, signature_severity Major, updated_at 2019_08_26
Reference:
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md5
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a55bd3cc5caa47cb45355e9f79d4fc47
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "POST"
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Value: ".php"
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Value: "Content-Disposition|3a 20|form-data|3b 20|name=|22|file|22 3b 20|filename=|22|"
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Value: "Content-Type|3a 20|application/octet-stream|0d 0a|"
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Value: "Screen.jpg"
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Value: !"Referer|3a|"
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Value: !"User-Agent|3a|"
Within:
PCRE: "/\sfilename=\x22[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[A-Za-z]+?/Psi"
Special Options:
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http_method
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http_uri
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http_client_body
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http_client_body
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http_client_body
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fast_pattern
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http_header
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http_header