'rc4' 검색 결과

Provides a reference for reviewing DeFi smart contracts, programs that manage blockchain transactions. It organizes vulnerability types with causes, code examples, search patterns, and fixes to help investigate accounting, permissions, boundary conditions, and pricing logic.

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• Checking for accounting inconsistencies and missing permission checks
• Comparing normal and alternative code paths
• Reviewing deadline and array boundary conditions

Investigate forged Kerberos authentication tickets in Active Directory by checking Windows logs for unusual encryption, excessive ticket lifetimes, and missing authentication requests. Produce a JSON report of suspicious indicators with risk ratings.

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• Investigating suspected forged authentication tickets
• Checking for possible krbtgt credential theft
• Building detection rules from authentication logs

Detects weak or misconfigured cryptography in mobile apps (Android/iOS). Trigger on: hardcoded keys, ECB mode, DES, 3DES, RC4, MD5, SHA-1, SecureRandom misuse, static IV, reused IV, Math.random, arc4random, CommonCrypto, CryptoKit, Android Keystore, SecKey, AES-ECB, RSA without OAEP, insufficient key size, predictable seed, insecure key storage, broken hash, PBKDF2 iteration count. Covers MASVS-CRYPTO-1 (algorithm choice) and MASVS-CRYPTO-2 (key management).

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Decrypts statically embedded malware configuration blobs by trying common schemes (single-byte and multi-byte XOR, RC4, base64 layers) and scoring decoded output for config-like content. Activates for requests to decrypt an embedded config, recover hardcoded settings from a blob, or brute-force a configuration encryption scheme.

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Investigate stolen Kerberos tickets, authentication credentials that can be reused without a password, by correlating Windows security events. Build Splunk or Elastic detection rules for cross-host reuse, weaker encryption, and unusual request volumes, and report risk-scored findings.

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• Investigating suspected reuse of stolen Kerberos tickets
• Building Splunk or Elastic detection rules
• Finding unusual ticket request volumes

Investigate Active Directory authentication logs with Splunk and KQL queries to find signs of Golden Ticket attacks, which use forged Kerberos authentication tickets. Examine encryption mismatches, missing ticket requests, unusual lifetimes, and account inconsistencies.

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• Hunting for forged tickets after credential theft
• Investigating encryption mismatches in authentication logs
• Checking for persistent access after incident response

Use grep text searches to locate Solidity code that needs security review. Ten search groups, priority tiers, and protocol-specific patterns help organize findings and choose where to begin a deeper smart contract audit.

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• Mapping review targets before a smart contract audit
• Searching for a specific vulnerability class
• Prioritizing suspicious code for deeper review

Smart contract security audit — 10 DeFi bug classes (accounting desync, access control, incomplete path, off-by-one, oracle, ERC4626, reentrancy, flash loan, signature replay, proxy), pre-dive kill signals (TVL < $500K etc), Foundry PoC template, grep patterns for each class, and real Immunefi paid examples. Use for any Solidity/Rust contract audit or when deciding whether a DeFi target is worth hunting.

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Smart contract security audit — 10 DeFi bug classes (accounting desync, access control, incomplete path, off-by-one, oracle, ERC4626, reentrancy, flash loan, signature replay, proxy), pre-dive kill signals (TVL < $500K etc), Foundry PoC template, grep patterns for each class, and real Immunefi paid examples. Use for any Solidity/Rust contract audit or when deciding whether a DeFi target is worth hunting.

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Provides malware analysis and network traffic techniques for CTF challenges. Use when analyzing obfuscated scripts, malicious packages, custom crypto protocols, C2 traffic, PE/.NET binaries, RC4/AES encrypted communications, YARA rules, shellcode analysis, memory forensics for malware (Volatility malfind, process injection detection), anti-analysis techniques (VM/sandbox detection, timing evasion, API hashing, process injection, environment checks), or extracting malware configurations and indicators of compromise.

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Analyze a target's TLS configuration — negotiated protocol version, cipher suite, certificate chain, expiry, and downgrade vectors. Use when: SOC2 auditor flagged your endpoint for "weak TLS" but you don't know which control failed (TSC CC6.7 transmission integrity vs CC6.6 encryption) or which cipher is the problem. Threshold: any negotiated TLSv1.0 or TLSv1.1, OR a cipher with RC4 / 3DES / null / EXPORT, OR a cert with under 30 days to expiry, OR a chain that fails hostname verification. Trigger with: "audit tls", "check ssl config", "weak tls", "analyze tls".

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用于混淆脚本、恶意样本、自定义加密协议、C2 流量、PE/.NET 二进制、RC4/AES 通信、YARA、shellcode、进程注入与反分析等恶意软件类 CTF 题;触发名:ctf-malware

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The telemetry each Active Directory technique generates and what alerts a defender: Kerberoasting produces Event 4769 with RC4 encryption (0x17) and an MDI alert, DCSync produces Event 4662 with the DS-Replication-Get-Changes GUID, AS-REP roasting produces Event 4768 with no pre-auth, LSASS dumping is blocked by EDR, plus a lateral-movement telemetry table by protocol (SMB/WMI/WinRM/RDP/DCOM). Use this whenever you run or plan an offensive AD technique and need to know what noise it makes, when writing the engagement's detection notes, or when a defender wants to know what to monitor. Teaches red teamers what is loud and blue teamers what to watch. Standard-tooling knowledge, no vendor engine.

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Real-world Active Directory environment constraints that silently break attacks when ignored: NTLM disabled (Kerberos fallback), AES-only KDCs (RC4 blocked by GPO), LDAP signing and channel binding requiring LDAPS on 636, Kerberos clock skew (KRB_AP_ERR_SKEW), SPNs that must be FQDNs never short names or IPs (the misleading invalidCredentials), Protected Users / LAPS / gMSA / MachineAccountQuota, LDAP 1000-object paging, and VPN latency. Use this whenever a bind, TGT request, LDAP query, or SMB negotiation fails in a way that looks like bad credentials but is really hardening, or before running any AD tooling against a domain you have not fingerprinted. Standard-tooling knowledge (netexec, impacket, certipy, bloodyAD, kerbrute), no vendor-specific engine.

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Encrypt PDFs with AES-128, AES-256, or RC4 options and decrypt authorized PDFs with ComPDF. Use for PDF passwords, permission controls, encryption, decryption, and document-access protection.

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Exploit Active Directory environments using Kerberoasting. This skill details how to identify Service Principal Names (SPNs) associated with user accounts, request their TGS tickets, and crack the RC4 encrypted component offline to recover service account passwords.

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Hunts for Kerberoasting and related ticket attacks by analyzing Kerberos service ticket request events (4769) for weak encryption types, abnormal request volume per account, and non-machine accounts requesting many SPNs. Activates for requests to hunt Kerberoasting, detect RC4 ticket requests, or find SPN-targeting credential attacks.

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Detect Kerberos Golden Ticket forgery by analyzing Windows Event ID 4769 for RC4 encryption downgrades (0x17), abnormal ticket lifetimes, and krbtgt account anomalies in Splunk and Elastic SIEM

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Detect Kerberos Golden Ticket forgery by analyzing Windows Event ID 4769 for RC4 encryption downgrades (0x17), abnormal ticket lifetimes, and krbtgt account anomalies in Splunk and Elastic SIEM

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Agent fallback for CEngineServer_IsMapValid-noinline (auto-generated, category: vfunc). Locate CEngineServer::IsMapValid in the CS2 engine module via IDA Pro MCP and emit a fresh, minimal-unique artifact. The deterministic preprocessor could not resolve this symbol on the current gamever - your job is the re-sign. Trigger: CEngineServer_IsMapValid-noinline, CEngineServer::IsMapValid

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Agent fallback for CEngineServer_KickClient (auto-generated, category: vfunc). Locate CEngineServer::KickClient in the CS2 engine module via IDA Pro MCP and emit a fresh, minimal-unique artifact. The deterministic preprocessor could not resolve this symbol on the current gamever - your job is the re-sign. Trigger: CEngineServer_KickClient, CEngineServer::KickClient

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Agent fallback for CEngineServer_IsMapValid-inlined (auto-generated, category: vfunc). Locate CEngineServer::IsMapValid in the CS2 engine module via IDA Pro MCP and emit a fresh, minimal-unique artifact. The deterministic preprocessor could not resolve this symbol on the current gamever - your job is the re-sign. Trigger: CEngineServer_IsMapValid-inlined, CEngineServer::IsMapValid

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Agent fallback for CEngineServer_PrecacheGeneric (auto-generated, category: vfunc). Locate CEngineServer::PrecacheGeneric in the CS2 engine module via IDA Pro MCP and emit a fresh, minimal-unique artifact. The deterministic preprocessor could not resolve this symbol on the current gamever - your job is the re-sign. Trigger: CEngineServer_PrecacheGeneric, CEngineServer::PrecacheGeneric

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Agent fallback for CEngineServer_ServerCommand (auto-generated, category: func). Locate CEngineServer_ServerCommand in the CS2 engine module via IDA Pro MCP and emit a fresh, minimal-unique artifact. The deterministic preprocessor could not resolve this symbol on the current gamever - your job is the re-sign. Trigger: CEngineServer_ServerCommand, CEngineServer_ServerCommand

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