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![\"\"](\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F11233602%2F727b0d95a142ee2bd8f0e8cef45c1ae9%2Fred.PNG?generation=1661742571915751&alt=media\")
I tried every possible way to find the flag but still can't find it, can anyone give a hint?
", "messages": [ { "id": 1910032, "postDate": "2022-08-23T06:09:33.443Z", "content": "I tried every possible way to find the flag but still can't find it, can anyone give a hint?
", "rawMarkdown": "I tried every possible way to find the flag but still can't find it, can anyone give a hint?", "votes": 11 }, { "id": 1913520, "postDate": "2022-08-25T10:51:31.683Z", "content": "In discord, there was the following chat, in which \"moo\" gave a hint…
\n\n\nsirjunglefowl: Oh sorry, one last one (for the time being, this CTF has consumed my life). I'm assuming since it's an ML competition the secret sloth won't be using things like LSB, binwalk, exiftool, etc? I have already used these tools but I'm figuring it'd have something more to do with a certain machine learning technique (I've got a few candidates that I've tried out to no avail).
\nmoo: You’re in the right place. Not necessarily machine learning, but in that general direction of linear algebra, signal processing, etc.
\n
\n", "rawMarkdown": "In discord, there was the following chat, in which \"moo\" gave a hint...\n\n> **sirjunglefowl:** Oh sorry, one last one (for the time being, this CTF has consumed my life). I'm assuming since it's an ML competition the secret sloth won't be using things like LSB, binwalk, exiftool, etc? I have already used these tools but I'm figuring it'd have something more to do with a certain machine learning technique (I've got a few candidates that I've tried out to no avail).\n\n> **moo:** You’re in the right place. Not necessarily machine learning, but **in that general direction of linear algebra, signal processing, etc.**\n\n---\n\n> **RoblksCube:** I also thought I saw what was happening in sloth over a week ago, and still haven't figured it out after many days of attempts. I hope you have better luck than I have! Would love at least a point in the direction I should be looking. I feel like there are too many potential paths to take but the solution must be relatively simple since some people in the top 10 solved it in the first few days. I'm at the point where I'm reading papers on advanced Steganography and trying to implement them... :/\n\n> **ChrisA:** I think **moo's previous hint of \"linear algebra, signal processing, etc.\" was a great hint**... 🤔 though I totally get what you're feeling - I'm in the same boat for crop2 now!", "votes": 7, "replies": [ { "id": 1913784, "postDate": "2022-08-25T14:02:31.417Z", "content": "RoblksCube: I also thought I saw what was happening in sloth over a week ago, and still haven't figured it out after many days of attempts. I hope you have better luck than I have! Would love at least a point in the direction I should be looking. I feel like there are too many potential paths to take but the solution must be relatively simple since some people in the top 10 solved it in the first few days. I'm at the point where I'm reading papers on advanced Steganography and trying to implement them… :/
\nChrisA: I think moo's previous hint of \"linear algebra, signal processing, etc.\" was a great hint… 🤔 though I totally get what you're feeling - I'm in the same boat for crop2 now!
\n
Has anyone found this helpful? Has taken me down a few directions but I still don't get it.
", "rawMarkdown": "Has anyone found this helpful? Has taken me down a few directions but I still don't get it.", "votes": 1 }, { "id": 1913834, "postDate": "2022-08-25T14:31:05.987Z", "content": "Personally, I found it extremely helpful since it encouraged me to retry my initial approach. Turns out that my first attempt had worked; I just didn't realize it at the time!
", "rawMarkdown": "Personally, I found it *extremely* helpful since it encouraged me to retry my initial approach. Turns out that my first attempt had worked; I just didn't realize it at the time! ", "votes": 3 }, { "id": 1913843, "postDate": "2022-08-25T14:33:55.543Z", "content": "Can you explain a little more?
", "rawMarkdown": "Can you explain a little more? " }, { "id": 1913932, "postDate": "2022-08-25T15:28:09.283Z", "rawMarkdown": "", "isDeleted": true }, { "id": 1913966, "postDate": "2022-08-25T15:56:29.283Z", "content": "And what is your domain? :)
", "rawMarkdown": "And what is your domain? :)", "votes": 6 } ] }, { "id": 1910120, "postDate": "2022-08-23T07:38:25.463Z", "content": "as @golubev said, I think its either you have it or not ! I tried \"I think\" most of the algorithms that I can think off, even tried what ever I fount online for extracting information of images , anything I found about \"Steganography\" I tried …. I even imagined some elements in the image as something else and tried but nthn so far :( ! there must be something missing, And why the image folder name is secret.sloth not like other folders I don't know …
\nThis and WAF are the two problems that I totally don't understand what to do next …
I also wondered about that \"secret.sloth\" if it is maybe the password to be used with some popular steganography implementation. Have you tried that coincidentally? I personally doubt it. I also tried the obvious thing and look into the image metadata -nothing. Looking at the file with a hex-editor (only by eye) - nothing.
", "rawMarkdown": "I also wondered about that \"secret.sloth\" if it is maybe the password to be used with some popular steganography implementation. Have you tried that coincidentally? I personally doubt it. I also tried the obvious thing and look into the image metadata -nothing. Looking at the file with a hex-editor (only by eye) - nothing.", "votes": 1 }, { "id": 1910372, "postDate": "2022-08-23T11:28:40.987Z", "content": "Nothing I tried asked for password so far, I tried using the folder name as sub domain … nthn ….. I found one image online (same image we have) which makes be me think its the original one, well the original one size is larger than ours :D
", "rawMarkdown": "Nothing I tried asked for password so far, I tried using the folder name as sub domain ... nthn ..... I found one image online (same image we have) which makes be me think its the original one, well the original one size is larger than ours :D\n", "votes": 2 } ] }, { "id": 1910490, "postDate": "2022-08-23T13:18:54.693Z", "content": "You’re all correct. It’s a bit of “you either know it or you don’t.” So if the techniques you’ve been trying aren’t working, try changing your perspective.
", "rawMarkdown": "You’re all correct. It’s a bit of “you either know it or you don’t.” So if the techniques you’ve been trying aren’t working, try changing your perspective. ", "votes": 4 }, { "id": 1910080, "postDate": "2022-08-23T06:44:36.463Z", "content": "It looks like this task is some kind of trick in a specific area, you either know the answer or you don't. Since popular algorithms give nothing. And if you already dig into something complicated, then you can generally encrypt the message of the flag so that you will not receive an answer in 1000 years. For me, even crop2 has a more understandable description than secret sloth.
", "rawMarkdown": "It looks like this task is some kind of trick in a specific area, you either know the answer or you don't. Since popular algorithms give nothing. And if you already dig into something complicated, then you can generally encrypt the message of the flag so that you will not receive an answer in 1000 years. For me, even crop2 has a more understandable description than secret sloth.", "votes": 4, "replies": [ { "id": 1913878, "postDate": "2022-08-25T14:55:11.557Z", "content": "Any hint would help?
", "rawMarkdown": "Any hint would help?" }, { "id": 1914637, "postDate": "2022-08-26T08:46:30.147Z", "content": "Nothing. there is too big scope for options on how to hide a message in a picture, every day I read new articles, checking, and find noise or nothing in the picture.
", "rawMarkdown": "Nothing. there is too big scope for options on how to hide a message in a picture, every day I read new articles, checking, and find noise or nothing in the picture." }, { "id": 1926097, "postDate": "2022-09-04T14:57:28.250Z", "rawMarkdown": "", "isDeleted": true } ] }, { "id": 1924596, "postDate": "2022-09-03T07:51:13.363Z", "content": "Did anyone solve it yet? Any hint? I believe the direction for linear algebra, and signal processing is too broad of a spectrum. And one more thing is the message written in the image itself or do we have to extract the message using the pixel value?
", "rawMarkdown": "Did anyone solve it yet? Any hint? I believe the direction for linear algebra, and signal processing is too broad of a spectrum. And one more thing is the message written in the image itself or do we have to extract the message using the pixel value?", "votes": 1, "replies": [ { "id": 1925356, "postDate": "2022-09-03T21:26:59.410Z", "content": "Plenty of solves. No extra hints.
", "rawMarkdown": "Plenty of solves. No extra hints. " } ] }, { "id": 1917739, "postDate": "2022-08-29T03:10:06.807Z", "content": "sloth! sloth! sloth!
\n
I see what you did there ;)
", "rawMarkdown": "I see what you did there ;) " }, { "id": 1921425, "postDate": "2022-08-31T20:33:55.160Z", "content": "This one's the linux version.
", "rawMarkdown": "This one's the linux version.", "votes": 1 } ] }, { "id": 1912202, "postDate": "2022-08-24T15:28:54.477Z", "content": "literally i.ve tried out everything, photoshop, steganography ( I found a .zlip folder but it's empty) still can't figure it out, should I search on the image it self or in the text of the photo?
", "rawMarkdown": "literally i.ve tried out everything, photoshop, steganography ( I found a .zlip folder but it's empty) still can't figure it out, should I search on the image it self or in the text of the photo?\n" }, { "id": 1914728, "postDate": "2022-08-26T11:09:29.050Z", "rawMarkdown": "", "votes": 9, "isDeleted": true } ], "comments": [ { "id": 1913520, "author_name": "Andrew", "author_url": "", "post_date": "2022-08-25T10:51:31.683000", "content": "In discord, there was the following chat, in which \"moo\" gave a hint…
\n\n\nsirjunglefowl: Oh sorry, one last one (for the time being, this CTF has consumed my life). I'm assuming since it's an ML competition the secret sloth won't be using things like LSB, binwalk, exiftool, etc? I have already used these tools but I'm figuring it'd have something more to do with a certain machine learning technique (I've got a few candidates that I've tried out to no avail).
\nmoo: You’re in the right place. Not necessarily machine learning, but in that general direction of linear algebra, signal processing, etc.
\n
\n", "votes": 7, "replies": [ { "id": 1913784, "author_name": "Rob Mulla", "author_url": "", "post_date": "2022-08-25T14:02:31.417000", "content": "RoblksCube: I also thought I saw what was happening in sloth over a week ago, and still haven't figured it out after many days of attempts. I hope you have better luck than I have! Would love at least a point in the direction I should be looking. I feel like there are too many potential paths to take but the solution must be relatively simple since some people in the top 10 solved it in the first few days. I'm at the point where I'm reading papers on advanced Steganography and trying to implement them… :/
\nChrisA: I think moo's previous hint of \"linear algebra, signal processing, etc.\" was a great hint… 🤔 though I totally get what you're feeling - I'm in the same boat for crop2 now!
\n
Has anyone found this helpful? Has taken me down a few directions but I still don't get it.
", "votes": 1, "replies": [] }, { "id": 1913834, "author_name": "Quillen", "author_url": "", "post_date": "2022-08-25T14:31:05.987000", "content": "Personally, I found it extremely helpful since it encouraged me to retry my initial approach. Turns out that my first attempt had worked; I just didn't realize it at the time!
", "votes": 3, "replies": [] }, { "id": 1913843, "author_name": "Tariq Haj Naser", "author_url": "", "post_date": "2022-08-25T14:33:55.543000", "content": "Can you explain a little more?
", "votes": 0, "replies": [] }, { "id": 1913932, "author_name": "", "author_url": "", "post_date": "2022-08-25T15:28:09.283000", "content": "", "votes": 0, "replies": [] }, { "id": 1913966, "author_name": "Gabriel Lindenmaier", "author_url": "", "post_date": "2022-08-25T15:56:29.283000", "content": "And what is your domain? :)
", "votes": 6, "replies": [] } ] }, { "id": 1910120, "author_name": "Ali", "author_url": "", "post_date": "2022-08-23T07:38:25.463000", "content": "as @golubev said, I think its either you have it or not ! I tried \"I think\" most of the algorithms that I can think off, even tried what ever I fount online for extracting information of images , anything I found about \"Steganography\" I tried …. I even imagined some elements in the image as something else and tried but nthn so far :( ! there must be something missing, And why the image folder name is secret.sloth not like other folders I don't know …
\nThis and WAF are the two problems that I totally don't understand what to do next …
I also wondered about that \"secret.sloth\" if it is maybe the password to be used with some popular steganography implementation. Have you tried that coincidentally? I personally doubt it. I also tried the obvious thing and look into the image metadata -nothing. Looking at the file with a hex-editor (only by eye) - nothing.
", "votes": 1, "replies": [] }, { "id": 1910372, "author_name": "Ali", "author_url": "", "post_date": "2022-08-23T11:28:40.987000", "content": "Nothing I tried asked for password so far, I tried using the folder name as sub domain … nthn ….. I found one image online (same image we have) which makes be me think its the original one, well the original one size is larger than ours :D
", "votes": 2, "replies": [] } ] }, { "id": 1910490, "author_name": "Joe Lucas", "author_url": "", "post_date": "2022-08-23T13:18:54.693000", "content": "You’re all correct. It’s a bit of “you either know it or you don’t.” So if the techniques you’ve been trying aren’t working, try changing your perspective.
", "votes": 4, "replies": [] }, { "id": 1910080, "author_name": "Vlad Golubev", "author_url": "", "post_date": "2022-08-23T06:44:36.463000", "content": "It looks like this task is some kind of trick in a specific area, you either know the answer or you don't. Since popular algorithms give nothing. And if you already dig into something complicated, then you can generally encrypt the message of the flag so that you will not receive an answer in 1000 years. For me, even crop2 has a more understandable description than secret sloth.
", "votes": 4, "replies": [ { "id": 1913878, "author_name": "Tariq Haj Naser", "author_url": "", "post_date": "2022-08-25T14:55:11.557000", "content": "Any hint would help?
", "votes": 0, "replies": [] }, { "id": 1914637, "author_name": "Vlad Golubev", "author_url": "", "post_date": "2022-08-26T08:46:30.147000", "content": "Nothing. there is too big scope for options on how to hide a message in a picture, every day I read new articles, checking, and find noise or nothing in the picture.
", "votes": 0, "replies": [] }, { "id": 1926097, "author_name": "", "author_url": "", "post_date": "2022-09-04T14:57:28.250000", "content": "", "votes": 0, "replies": [] } ] }, { "id": 1924596, "author_name": "Pritam Sinha", "author_url": "", "post_date": "2022-09-03T07:51:13.363000", "content": "Did anyone solve it yet? Any hint? I believe the direction for linear algebra, and signal processing is too broad of a spectrum. And one more thing is the message written in the image itself or do we have to extract the message using the pixel value?
", "votes": 1, "replies": [ { "id": 1925356, "author_name": "Joe Lucas", "author_url": "", "post_date": "2022-09-03T21:26:59.410000", "content": "Plenty of solves. No extra hints.
", "votes": 0, "replies": [] } ] }, { "id": 1917739, "author_name": "guanw", "author_url": "", "post_date": "2022-08-29T03:10:06.807000", "content": "sloth! sloth! sloth!
\n
I see what you did there ;)
", "votes": 0, "replies": [] }, { "id": 1921425, "author_name": "John Mitchell", "author_url": "", "post_date": "2022-08-31T20:33:55.160000", "content": "This one's the linux version.
", "votes": 1, "replies": [] } ] }, { "id": 1912202, "author_name": "Tariq Haj Naser", "author_url": "", "post_date": "2022-08-24T15:28:54.477000", "content": "literally i.ve tried out everything, photoshop, steganography ( I found a .zlip folder but it's empty) still can't figure it out, should I search on the image it self or in the text of the photo?
", "votes": 0, "replies": [] }, { "id": 1914728, "author_name": "", "author_url": "", "post_date": "2022-08-26T11:09:29.050000", "content": "", "votes": 9, "replies": [] } ], "raw_markdown_by_id": { "1910032": "I tried every possible way to find the flag but still can't find it, can anyone give a hint?", "1913520": "In discord, there was the following chat, in which \"moo\" gave a hint...\n\n> **sirjunglefowl:** Oh sorry, one last one (for the time being, this CTF has consumed my life). I'm assuming since it's an ML competition the secret sloth won't be using things like LSB, binwalk, exiftool, etc? I have already used these tools but I'm figuring it'd have something more to do with a certain machine learning technique (I've got a few candidates that I've tried out to no avail).\n\n> **moo:** You’re in the right place. Not necessarily machine learning, but **in that general direction of linear algebra, signal processing, etc.**\n\n---\n\n> **RoblksCube:** I also thought I saw what was happening in sloth over a week ago, and still haven't figured it out after many days of attempts. I hope you have better luck than I have! Would love at least a point in the direction I should be looking. I feel like there are too many potential paths to take but the solution must be relatively simple since some people in the top 10 solved it in the first few days. I'm at the point where I'm reading papers on advanced Steganography and trying to implement them... :/\n\n> **ChrisA:** I think **moo's previous hint of \"linear algebra, signal processing, etc.\" was a great hint**... 🤔 though I totally get what you're feeling - I'm in the same boat for crop2 now!", "1910120": "as @golubev said, I think its either you have it or not ! I tried \"I think\" most of the algorithms that I can think off, even tried what ever I fount online for extracting information of images , anything I found about \"Steganography\" I tried .... I even imagined some elements in the image as something else and tried but nthn so far :( ! there must be something missing, And why the image folder name is secret.sloth not like other folders I don't know ... \nThis and WAF are the two problems that I totally don't understand what to do next ...\n", "1910490": "You’re all correct. It’s a bit of “you either know it or you don’t.” So if the techniques you’ve been trying aren’t working, try changing your perspective. ", "1910080": "It looks like this task is some kind of trick in a specific area, you either know the answer or you don't. Since popular algorithms give nothing. And if you already dig into something complicated, then you can generally encrypt the message of the flag so that you will not receive an answer in 1000 years. For me, even crop2 has a more understandable description than secret sloth.", "1924596": "Did anyone solve it yet? Any hint? I believe the direction for linear algebra, and signal processing is too broad of a spectrum. And one more thing is the message written in the image itself or do we have to extract the message using the pixel value?", "1917739": "sloth! sloth! sloth!\n", "1912202": "literally i.ve tried out everything, photoshop, steganography ( I found a .zlip folder but it's empty) still can't figure it out, should I search on the image it self or in the text of the photo?\n", "1914728": "" } }