New Phishing Kits Jalisco and Omegalord: Because Apparently MFA Was Too Much Damn Trouble for People to Defend Properly
Right, here’s the miserable gist of it. The article explains how two phishing kits, Jalisco and Omegalord, are being used to steal Microsoft 365 access by bypassing MFA. Not by magic, not by some Hollywood hacker bullshit, but by abusing adversary-in-the-middle phishing pages that sit between the victim and Microsoft’s real login process. Users type in credentials, complete MFA like obedient little corporate drones, and the attackers nick the authenticated session cookies. After that, they can stroll right into the account without needing the password or the second factor again. Bloody wonderful.
The nasty part is that this isn’t just old-school “please reset your password” scam garbage. These kits are polished, built for criminals who want a nice tidy subscription model for fraud, and specifically aimed at Microsoft 365 accounts because that’s where the juicy business data, email threads, invoices, and internal access live. Once the attacker gets in, they can read mail, impersonate staff, push business email compromise scams, and generally turn your tenant into a flaming pile of shit.
According to the article, Jalisco is a phishing-as-a-service kit with the usual criminal convenience features: fake Microsoft login pages, session theft, and a management setup that makes account compromise easier than it has any right to be. Omegalord does similar dirty work, helping attackers intercept authentication flows and harvest the session tokens they need. In other words, MFA still happens, but the bastard in the middle steals the proof that it happened. So if your security strategy is “we turned on MFA, job done,” then congratulations, you’ve built yourself a cardboard fucking shield.
The article points out that traditional MFA methods, especially ones relying on push approvals or easily phished login workflows, are vulnerable to this kind of attack. Users are tricked into visiting a convincing fake sign-in page, they log in, they approve the MFA request, and the attacker reuses the authenticated session. The victim thinks everything is normal. Meanwhile, some parasite is rummaging through Exchange Online, SharePoint, Teams, and anything else the session grants access to.
So what’s the lesson, apart from “people will click any damn thing if it looks official enough”? Stronger phishing-resistant authentication matters. The article pushes the importance of protections like FIDO2 security keys, passkeys, certificate-based authentication, Conditional Access, sign-in risk analysis, and session controls. Monitoring for suspicious sign-ins, impossible travel, token abuse, and mailbox rule changes also matters, because once these bastards get in, they like to set up persistence and start quietly stealing or redirecting mail.
Defenders also need to stop treating MFA as some sacred magical checkbox. It helps, yes, but if you let users be herded through a fake reverse-proxy login page, then MFA can still be gutted like a fish. Security awareness training, hardened authentication methods, limiting legacy auth, and watching session activity are all part of keeping these thieving little sods out.
In short: Jalisco and Omegalord prove that ordinary MFA alone is not enough against modern phishing kits. If attackers can steal session cookies after a successful login, they don’t need to crack the front door—they just nick the bloody house keys after you’ve opened it for them. Same result, same mess, same late-night cleanup for some poor bastard in IT.
Anecdote time. This reminds me of a user who once swore blind that “MFA means nobody can hack me.” Ten minutes later he approved a login prompt while sitting in the pub because he thought it was “just Outlook being weird again.” We spent the next six hours unwinding mailbox rules forwarding finance emails to some scumbag with a Proton account. Users: the gift that keeps on shitting.
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