<html lang="en" data-theme="dark"><head><meta charSet="utf-8"/><title>FluxFingers</title><meta name="viewport" content="width=device-width,initial-scale=1"/><link rel="stylesheet" href="/build/_assets/main-UDH55ZJK.css"/><link rel="stylesheet" href="/build/_assets/codeblocks-KQVPJQDB.css"/><link rel="icon" href="/img/favicon.png" type="image/png" sizes="any"/><link rel="apple-touch-icon" href="/img/favicon.png" type="image/png"/><link rel="stylesheet" href="/build/_assets/nitter-W56EAX42.css"/><style data-emotion="t "></style></head><body><div class="t-1g4yje1"><div class="t-16oa1ke"><div class="t-97xi9b"><div class="t-1ybfhpg"><div class="t-g4u6l5"><div class="t-ov74nu"><p class="chakra-text t-15muuum"><img src="/img/mediumword.png" class="desktopLogo t-11ukie"/><img src="/img/nurWDtransp.png" class="mobileLogo t-11ukie"/></p><button type="button" aria-label="Close" class="t-a55ue7"><svg viewBox="0 0 24 24" focusable="false" class="chakra-icon t-onkibi" aria-hidden="true"><path fill="currentColor" d="M.439,21.44a1.5,1.5,0,0,0,2.122,2.121L11.823,14.3a.25.25,0,0,1,.354,0l9.262,9.263a1.5,1.5,0,1,0,2.122-2.121L14.3,12.177a.25.25,0,0,1,0-.354l9.263-9.262A1.5,1.5,0,0,0,21.439.44L12.177,9.7a.25.25,0,0,1-.354,0L2.561.44A1.5,1.5,0,0,0,.439,2.561L9.7,11.823a.25.25,0,0,1,0,.354Z"></path></svg></button></div><div class="t-pz8222"><a class="chakra-link navhref t-spn4bz" href="/"><span style="text-decoration:none" class="t-5f6266"><div role="group" class="fluxSVG t-18yqfod"><svg viewBox="0 0 118 46" focusable="false" class="chakra-icon chakra-icon t-tmv6n8"><defs><style>.a{fill:#00c8ff;}.b{fill:#00d96d;}</style></defs><rect class="a" x="14" y="14.014" width="42" height="8" rx="2"></rect><rect class="b" x="62" y="14.014" width="42" height="8" rx="2"></rect><rect class="a" width="56" height="8" rx="2"></rect><rect class="b" x="62" width="56" height="8" rx="2"></rect><path class="a" d="M54,46H50a2,2,0,0,1-2-2V38a2,2,0,0,0-2-2H37a2,2,0,0,1-2-2V30a2,2,0,0,1,2-2H54a2,2,0,0,1,2,2V44A2,2,0,0,1,54,46Z"></path><path class="b" d="M68,46H64a2,2,0,0,1-2-2V30a2,2,0,0,1,2-2H81a2,2,0,0,1,2,2v4a2,2,0,0,1-2,2H72a2,2,0,0,0-2,2v6A2,2,0,0,1,68,46Z"></path></svg>FluxFingers</div></span></a><a class="chakra-link navhref t-spn4bz" href="/rookies"><span style="text-decoration:none" class="t-5f6266"><div role="group" class="fluxSVG t-18yqfod"><svg viewBox="0 0 118 46" focusable="false" class="chakra-icon chakra-icon t-tmv6n8"><defs><style>.aa{fill:red;}.bb{fill:#99b3bf;}</style></defs><rect class="aa" x="14" y="14.014" width="42" height="8" rx="2"></rect><rect class="bb" x="62" y="14.014" width="42" height="8" rx="2"></rect><rect class="aa" width="56" height="8" rx="2"></rect><rect class="bb" x="62" width="56" height="8" rx="2"></rect><path class="aa" d="M54,46H50a2,2,0,0,1-2-2V38a2,2,0,0,0-2-2H37a2,2,0,0,1-2-2V30a2,2,0,0,1,2-2H54a2,2,0,0,1,2,2V44A2,2,0,0,1,54,46Z"></path><path class="bb" d="M68,46H64a2,2,0,0,1-2-2V30a2,2,0,0,1,2-2H81a2,2,0,0,1,2,2v4a2,2,0,0,1-2,2H72a2,2,0,0,0-2,2v6A2,2,0,0,1,68,46Z"></path></svg>FluxRookies</div></span></a><a target="_blank" class="chakra-link navhref t-spn4bz" href="https://flu.xxx/"><span style="text-decoration:none" class="t-5f6266"><div role="group" class="fluxSVG t-18yqfod"><svg viewBox="0 0 118 46" focusable="false" class="chakra-icon chakra-icon t-tmv6n8"><defs><style>.aa2{fill:#00c8ff;}.bb2{fill:#99b3bf;}</style></defs><rect class="aa2" x="14" y="14.014" width="42" height="8" rx="2"></rect><rect class="bb2" x="62" y="14.014" width="42" height="8" rx="2"></rect><rect class="aa2" width="56" height="8" rx="2"></rect><rect class="bb2" x="62" width="56" height="8" rx="2"></rect><path class="aa2" d="M54,46H50a2,2,0,0,1-2-2V38a2,2,0,0,0-2-2H37a2,2,0,0,1-2-2V30a2,2,0,0,1,2-2H54a2,2,0,0,1,2,2V44A2,2,0,0,1,54,46Z"></path><path class="bb2" d="M68,46H64a2,2,0,0,1-2-2V30a2,2,0,0,1,2-2H81a2,2,0,0,1,2,2v4a2,2,0,0,1-2,2H72a2,2,0,0,0-2,2v6A2,2,0,0,1,68,46Z"></path></svg>Hack.lu CTF</div></span></a><a class="chakra-link navhref t-spn4bz" href="/team"><span style="text-decoration:none" class="t-5f6266"><div role="group" class="fluxSVG t-18yqfod"><svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 640 512" focusable="false" class="chakra-icon t-164c2hr" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg"><path d="M96 224c35.3 0 64-28.7 64-64s-28.7-64-64-64-64 28.7-64 64 28.7 64 64 64zm448 0c35.3 0 64-28.7 64-64s-28.7-64-64-64-64 28.7-64 64 28.7 64 64 64zm32 32h-64c-17.6 0-33.5 7.1-45.1 18.6 40.3 22.1 68.9 62 75.1 109.4h66c17.7 0 32-14.3 32-32v-32c0-35.3-28.7-64-64-64zm-256 0c61.9 0 112-50.1 112-112S381.9 32 320 32 208 82.1 208 144s50.1 112 112 112zm76.8 32h-8.3c-20.8 10-43.9 16-68.5 16s-47.6-6-68.5-16h-8.3C179.6 288 128 339.6 128 403.2V432c0 26.5 21.5 48 48 48h288c26.5 0 48-21.5 48-48v-28.8c0-63.6-51.6-115.2-115.2-115.2zm-223.7-13.4C161.5 263.1 145.6 256 128 256H64c-35.3 0-64 28.7-64 64v32c0 17.7 14.3 32 32 32h65.9c6.3-47.4 34.9-87.3 75.2-109.4z"></path></svg>Team</div></span></a><div class="t-135166s"><a target="_blank" class="chakra-link navlnk t-ofs0kf" href="/discord"><svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 640 512" focusable="false" class="chakra-icon t-13otjrl" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg"><path d="M524.531,69.836a1.5,1.5,0,0,0-.764-.7A485.065,485.065,0,0,0,404.081,32.03a1.816,1.816,0,0,0-1.923.91,337.461,337.461,0,0,0-14.9,30.6,447.848,447.848,0,0,0-134.426,0,309.541,309.541,0,0,0-15.135-30.6,1.89,1.89,0,0,0-1.924-.91A483.689,483.689,0,0,0,116.085,69.137a1.712,1.712,0,0,0-.788.676C39.068,183.651,18.186,294.69,28.43,404.354a2.016,2.016,0,0,0,.765,1.375A487.666,487.666,0,0,0,176.02,479.918a1.9,1.9,0,0,0,2.063-.676A348.2,348.2,0,0,0,208.12,430.4a1.86,1.86,0,0,0-1.019-2.588,321.173,321.173,0,0,1-45.868-21.853,1.885,1.885,0,0,1-.185-3.126c3.082-2.309,6.166-4.711,9.109-7.137a1.819,1.819,0,0,1,1.9-.256c96.229,43.917,200.41,43.917,295.5,0a1.812,1.812,0,0,1,1.924.233c2.944,2.426,6.027,4.851,9.132,7.16a1.884,1.884,0,0,1-.162,3.126,301.407,301.407,0,0,1-45.89,21.83,1.875,1.875,0,0,0-1,2.611,391.055,391.055,0,0,0,30.014,48.815,1.864,1.864,0,0,0,2.063.7A486.048,486.048,0,0,0,610.7,405.729a1.882,1.882,0,0,0,.765-1.352C623.729,277.594,590.933,167.465,524.531,69.836ZM222.491,337.58c-28.972,0-52.844-26.587-52.844-59.239S193.056,219.1,222.491,219.1c29.665,0,53.306,26.82,52.843,59.239C275.334,310.993,251.924,337.58,222.491,337.58Zm195.38,0c-28.971,0-52.843-26.587-52.843-59.239S388.437,219.1,417.871,219.1c29.667,0,53.307,26.82,52.844,59.239C470.715,310.993,447.538,337.58,417.871,337.58Z"></path></svg></a><a target="_blank" class="chakra-link navlnk t-ofs0kf" href="https://twitter.com/fluxfingers"><svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 512 512" focusable="false" class="chakra-icon t-13otjrl" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg"><path d="M459.37 151.716c.325 4.548.325 9.097.325 13.645 0 138.72-105.583 298.558-298.558 298.558-59.452 0-114.68-17.219-161.137-47.106 8.447.974 16.568 1.299 25.34 1.299 49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z"></path></svg></a><a class="chakra-link navlnk t-ofs0kf" href="mailto:fluxfingers@rub.de"><svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 512 512" focusable="false" class="chakra-icon t-13otjrl" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg"><path d="M256 8C118.941 8 8 118.919 8 256c0 137.059 110.919 248 248 248 48.154 0 95.342-14.14 135.408-40.223 12.005-7.815 14.625-24.288 5.552-35.372l-10.177-12.433c-7.671-9.371-21.179-11.667-31.373-5.129C325.92 429.757 291.314 440 256 440c-101.458 0-184-82.542-184-184S154.542 72 256 72c100.139 0 184 57.619 184 160 0 38.786-21.093 79.742-58.17 83.693-17.349-.454-16.91-12.857-13.476-30.024l23.433-121.11C394.653 149.75 383.308 136 368.225 136h-44.981a13.518 13.518 0 0 0-13.432 11.993l-.01.092c-14.697-17.901-40.448-21.775-59.971-21.775-74.58 0-137.831 62.234-137.831 151.46 0 65.303 36.785 105.87 96 105.87 26.984 0 57.369-15.637 74.991-38.333 9.522 34.104 40.613 34.103 70.71 34.103C462.609 379.41 504 307.798 504 232 504 95.653 394.023 8 256 8zm-21.68 304.43c-22.249 0-36.07-15.623-36.07-40.771 0-44.993 30.779-72.729 58.63-72.729 22.292 0 35.601 15.241 35.601 40.77 0 45.061-33.875 72.73-58.161 72.73z"></path></svg></a></div></div><div class="t-lokgmj"><div class="chakra-stack t-fvz8fy"><div class="t-dw3wnu">CTF team of</div><div class="chakra-stack t-1i5v0n6"><a target="_blank" class="chakra-link t-spn4bz" href="https://rub.de/en"><svg viewBox="20 -10 150 58" focusable="false" class="chakra-icon chakra-icon t-1s2apx8"><path d="M144.131 13.6729V2.29787H152.011C155.627 2.29787 158.485 3.95934 158.485 7.87761C158.485 11.8839 155.206 13.6729 151.626 13.6729H144.131ZM144.131 28.1099V15.9281H152.138C156.095 15.9281 159.291 17.7609 159.291 21.9355C159.291 26.1907 156.185 28.1099 152.219 28.1099H144.131ZM141.449 30.4094H152.863C157.505 30.4094 162.015 27.7688 162.015 22.0161C162.015 18.3989 159.761 15.2484 155.501 14.6079V14.5651C159.038 13.7161 161.123 10.7745 161.123 7.4516C161.123 2.55574 157.758 5.88155e-06 152.646 5.88155e-06H141.449V30.4094Z" fill="white"></path><path d="M123.635 30.9198C130.75 30.9198 135.946 26.8339 135.946 19.4197V0.0401314H129.389V19.2088C129.389 23.1697 127.427 25.2115 123.767 25.2115C119.843 25.2115 118.058 22.7844 118.058 19.2088V0.0401314H111.417V19.8025C111.417 27.2583 116.274 30.9198 123.635 30.9198Z" fill="white"></path><path d="M100.716 20.2375C104.961 17.8287 106.596 14.2511 106.596 10.6312C106.596 4.67026 102.333 0.0259977 96.0312 0.0259977H82.5964V30.3911H89.1979V5.3916H94.3896C98.0869 5.3916 100.138 7.59733 100.138 10.6312C100.138 13.2459 98.5287 15.8943 94.4323 15.8943H90.276L100.716 30.3911H108.001L100.716 20.2375Z" fill="white"></path><path d="M0.11972 30.3562H2.95212C4.06719 30.3562 5.13065 29.7047 5.13065 28.3588C5.13065 27.5177 4.62972 26.7828 3.67492 26.614V26.6036C4.47865 26.3692 4.91972 25.7235 4.91972 24.9683C4.91972 23.7984 4.11879 23.1973 2.87185 23.1973H0.11972V30.3562ZM0.932255 29.6656V27.0229H2.77079C3.65466 27.0229 4.31826 27.4156 4.31826 28.3197C4.31826 29.2339 3.65465 29.6656 2.78065 29.6656H0.932255ZM0.932255 26.3432V23.8901H2.70105C3.51505 23.8901 4.12759 24.2416 4.12759 25.0907C4.12759 25.9421 3.45412 26.3432 2.65159 26.3432H0.932255ZM9.17972 30.489C10.6557 30.489 11.8912 29.5177 11.8912 27.8979V25.5359C11.8912 23.9708 10.6859 23.0593 9.15932 23.0593C7.68279 23.0593 6.43799 24.0203 6.43799 25.6479V28.0907C6.43799 29.6557 7.68279 30.489 9.17972 30.489ZM9.17972 29.7651C8.05305 29.7651 7.24012 29.0932 7.24012 27.9968V25.6375C7.24012 24.4525 8.08385 23.7828 9.12972 23.7828C10.2839 23.7828 11.0864 24.4208 11.0864 25.5099V27.9579C11.0864 29.1317 10.2136 29.7651 9.17972 29.7651ZM16.0797 30.489C17.5057 30.489 18.6099 29.6973 18.6099 28.3375V28.0801H17.838V28.2312C17.838 29.1948 17.124 29.7651 16.0797 29.7651C14.9552 29.7651 14.1401 29.0823 14.1401 27.9968V25.5959C14.1401 24.4631 14.9849 23.7984 16.0281 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<p>We are the FluxFingers - the official CTF team of the <a href="https://rub.de/">Ruhr University Bochum (RUB)</a>.</p>
<br/>
<p>You might know us from the <a href="https://flu.xxx">hack.lu CTF</a> which we organize yearly. All of our active members are students of the RUB. In contrast to our mostly theoretical lectures we consider CTFs to be a great practical exercise and try to participate in as many of the competitions as our studies allow us.</p>
<br/>
<p>Are you interested in practicing your offensive skills and joining us? We offer an open "course" for beginners, called <a href="/rookies">FluxRookies</a>.</p>
<br/>
<h3>CTFs</h3>
<p>Information security Capture-The-Flag contests (CTFs) are international competitions requiring deep technical knowledge of security vulnerabilities. Points are earned by exploiting either a range of challenges or other teams' servers, depending on the type of CTF. If you want to learn more about CTFs head on to <a href="https://ctftime.org">ctftime.org</a>, a global ranking for CTF teams.</p>
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