Ke piʻi nui nei nā Trojans Remote Access i nā makahiki i hala iho nei a ua lilo i mea maʻamau ma mua o kekahi o nā pilikia malware maʻamau o ka honua. ʻO ka mea kūikawā, mai ka hanana ʻana o COVID-19, ua hoʻohana maikaʻi ka Agent Tesla remote-access trojan (RAT) i nā makaʻu maʻi maʻi a hoʻohui i kekahi mau hiʻohiʻona hou. Ua hōʻea mua ʻo Agent Tesla ma ke kahua ʻeiwa mau makahiki i hala aku nei a ua hōʻike ʻia i nā hoʻouka kaua hou aʻe i ka hapa mua o 2020 ma mua o nā mea hoʻoweliweli kaulana loa ʻo TrickBot a i ʻole Emotet, e kūʻē i nā ʻoihana.
He loea ʻo Agent Tesla i ka keylogging a me ka ʻaihue ʻikepili. Hāʻawi ia i nā binaries hou i ʻoi aku ka ikaika o ka hoʻolaha ʻana a me nā ala injection a hiki iā ia ke ʻaihue i nā kikoʻī pūnaewele uea ʻole a me nā hōʻoia. Hiki iā Agent Tesla ke hōʻiliʻili i ka ʻikepili hoʻonohonoho a me nā hōʻoia mai kekahi mau mea kūʻai VPN maʻamau, FTP a me nā mea leka uila a me nā polokalamu kele pūnaewele, me ka Apple Safari, Google Chrome, Edge, Mozilla Firefox, Mozilla Thunderbird, OpenVPN, Opera Mail a he nui na mea e ae.
ʻO kekahi hiʻohiʻona hou o kēia Trojan Remote Access kahiko, hiki i nā ʻano like ʻole ke kiʻi i nā mea hoʻokō kiʻekiʻe e hoʻokomo ma luna o ka mīkini o ka mea i pepehi ʻia a hoʻokomo i ka code i loko o kēlā mau binaries pae lua ma ke ʻano he ʻano ʻike evasion-detection.
Ma hoʻokahi hoʻolaha, ʻike nā mea noiʻi iā Agent Tesla e waiho ana i kahi kope o RegAsm.exe a hoʻokomo i nā code hou i loko; no laila, mālama ʻo RegAsm.exe i nā hana nui o ka ʻohi ʻikepili a me ka exfiltration. Hana ʻia ka injection ma ke kaʻina hana hollowing, kahi i hoʻopaʻa ʻole ʻia ai nā ʻāpana o ka hoʻomanaʻo ʻōnaehana me kēlā wahi a laila hoʻokaʻawale ʻia me ka code malicious.
Ua ʻike ʻia nā hoʻomaikaʻi ʻē aʻe i ka hana hoʻokō o ka malware. Ma hope o ka hoʻokuʻu ʻia ʻana o ke code, hōʻiliʻili ka malware i ka ʻike ʻōnaehana kūloko, hoʻokomo i kahi keylogger a laila hoʻomaka i nā hana maʻamau e ʻike a ʻohi i ka ʻikepili. I loko o kēia kaʻina hana, nānā ka malware i nā hoʻonohonoho pūnaewele uea a me nā hōʻoia.
ʻOiai ua puni ʻo Agent Tesla no kekahi mau makahiki i kēia manawa, ke hoʻomau nei ka poʻe hoʻouka i nā ala hou e hoʻohana ai iā ia me ka mālama ʻole ʻana a me ka pale ʻana i ka ʻike.