Darshan Thummar
@MightyCompletionist
1 follower12 downloads680 copies5 likes8,362 views
2,107 detections
Filters
Last updated
All Time
Detection languages
1,335
772
Categories
696
574
337
315
284
Platforms
1,363
586
192
85
85
Products / Services
1,327
297
79
39
34
MITRE Techniques
525
343
321
228
207
CVEs
1
1
IDS Classtypes
592
177
160
120
93
IDS Protocols
747
411
58
44
30
This rule detects attempts to execute a system reboot command via a web shell. It specifically looks for the case-insensitive string "reboot" within the HTTP URI of established client-to-server HTTP traffic. This activity is indicative of an attacker who has gained control over a web server and is using a web shell to issue system-level commands, potentially to disrupt services or cover tracks.
This rule detects a TCP connection flood, specifically looking for a high rate of TCP SYN packets (indicated by the 'flags:S' keyword) directed towards a single destination IP address within a short timeframe. A threshold of 500 SYN packets within 5 seconds to the same destination triggers the alert. This behavior is characteristic of a Denial of Service (DoS) attack, aiming to exhaust the target's resources by overwhelming it with connection requests.
This rule detects potential banking web inject form overlays by looking for specific keywords in HTTP response data. It triggers when an HTTP response contains 'account_number', 'routing_number', and 'XMLHttpRequest' (all case-insensitive). This combination of keywords suggests an attempt to inject malicious forms into a legitimate banking website to steal credentials or financial information.
This rule detects HTTP POST requests that are likely associated with financial transaction hijacking by banking Trojans. It specifically looks for HTTP POST requests where the host header or URI contains keywords related to banking or payment services (bank, paypal, stripe, wise, transferwise) and the URI also contains the word 'transfer'. Additionally, the request body size must be greater than 200 bytes, indicating a substantial data transfer, which is common in financial transactions.
This rule detects the delivery of a potential ransomware MBR (Master Boot Record) wiper payload via HTTP. It specifically looks for HTTP responses containing file data that starts with the byte sequence '55 AA' (which often indicates a boot sector or MBR) and also contains 'MZ' (the DOS executable signature), with a file size greater than 10,000 bytes. This combination suggests a malicious executable designed to overwrite the MBR, a common tactic used by certain types of ransomware or disk wipers.
Detects bulk access to internal information repositories for data collection
Detects issuance of free SSL certificates for newly registered attack domains
This rule detects potential data exfiltration over an alternate network medium by monitoring TCP traffic from the home network to any destination. It triggers an alert if the data size of an established connection exceeds 10000 bytes and if this occurs 20 times within a 60-second window from the same source IP address. This pattern suggests a large volume of data being transferred out of the network, which could indicate exfiltration.
Detects termination of cloud instances to destroy forensic evidence
Detects manipulation of running application data via web shell commands
Page 98 of 211