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[虚拟币交流]
黑客如何利用虚假验证码传播 Lumma Stealer 恶意软件(转)
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不良行为者正在使用虚假的 Captcha 提示来分发无文件 Lumma Stealer 恶意软件,该恶意软件可以窃取加密钱包凭证网络安全公司 DNSFilter 的研究.
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该提示首先在希腊银行网站上检测到,要求 Windows 用户将其复制并粘贴到“运行”对话框中,然后按 Enter。" [+ t. o7 x3 N# @8 J" b! o9 ]
" T# e: e' F0 w: {" Q; FDNSFilter 报告称,该公司的客户在三天内与虚假的验证码进行了 23 次交互,其中 17% 遇到提示的人完成了屏幕上的步骤,导致试图传播恶意软件。$ Z5 ~+ }8 `5 I- C C% f! d: q
; n- Z! O6 t, E9 x* P+ B" Q" ^该恶意软件是 Lumma Stealer,根据 DNSFilter 的全球合作伙伴布道者 Mikey Pruitt 的说法,它会在受感染的设备中搜索凭证和其他敏感数据。2 ^" l$ s/ k9 K$ |, |, N3 Y
* h' C3 `6 I; A0 J0 J1 B9 b他告诉记者:“Lumma Stealer 会立即扫描系统中所有可以盈利的东西,包括浏览器存储的密码和 Cookie、保存的 2FA 令牌、加密货币钱包数据、远程访问凭证,甚至密码管理器库。”解密.8 x% `% J' F ?: F, u
, D# ]6 u* ]- r$ R$ i; r, C普鲁特澄清说,不法分子利用窃取的数据有多种目的,通常都是为了获取金钱利益,比如身份盗窃和访问“在线账户进行金融盗窃或欺诈交易”,以及获取加密货币钱包的访问权限。5 z& F2 c$ m {( q( N( B3 O3 `
6 z' F% o3 A9 C$ n5 z7 a% [' p据普鲁特称,Lumma Stealer 的影响力非常广泛,可以在各种各样的网站上找到。7 z) R' C) D9 f9 ^1 a- @& D
! ~6 \3 k N/ [7 }* |* D) T9 ~他解释说:“虽然我们无法估算通过这一途径可能造成的损失,但这种威胁可能存在于非恶意网站上。这使得在出现可疑情况时保持警惕变得极其危险,也至关重要。”
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恶意软件即服务
& ]) o) b J2 {+ j" zLumma Stealer 不仅是恶意软件,而且是恶意软件即服务 (MaaS) 的一个例子。安全公司已报告它是近年来恶意软件攻击增多的罪魁祸首。$ U9 y* [; B! \4 b- |
' s) S/ S3 {* x5 d6 g N: J3 ^. _据 ESET 恶意软件分析师 Jakub Tomanek 称,Lumma Stealer 背后的运营者开发了其功能,完善了其逃避恶意软件检测的能力,同时还注册了域名来托管该恶意软件。
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& k5 T. x. M5 G2 D" I% V: o. {他告诉记者:“他们的主要目标是保持服务运营和盈利,从关联公司收取月度订阅费,从而有效地将 Lumma Stealer 运营为一个可持续的网络犯罪业务。”解密.0 K) l9 b; S% d1 y: ~) X
! ]5 A+ d( y, j+ a* ~% e由于网络犯罪分子无需开发恶意软件和任何底层基础设施,因此 Lumma Stealer 等 MaaS 一直很受欢迎。$ A [: |$ e! a
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5 月,美国司法部查封了五个互联网域名不法分子利用这些域名来操作 Lumma Stealer 恶意软件,而微软则私下关闭了 2,300 个类似的域名。0 z7 Q7 i* Y& H7 j9 H4 v
) Z8 `+ s2 M, k! t" C. W然而,有报道称,Lumma Stealer 自 5 月以来再次出现,并趋势科技七月分析数据显示,6月至7月期间“被攻击账户数量稳步恢复到正常水平”。( C" C; f1 ]1 ?: |
6 y1 p2 A# C: `0 G; I2 dLumma Stealer 的吸引力之一在于其订阅费用(通常为月费)相对于潜在收益而言较为便宜。- ~; X- Y R9 _) x* Y; R& R
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Darktrace 安全与人工智能战略副总裁 Nathaniel Jones 表示:“这种复杂的信息窃取程序在暗网论坛上的售价仅为 250 美元,它专门针对网络犯罪分子最关心的内容——加密货币钱包、浏览器存储的凭据和双因素身份验证系统。”: E# I9 E& o' E7 y. K6 f
; i/ c; S/ {" {; J( z6 Z# _琼斯告诉解密Lumma Stealer 漏洞的规模“令人震惊”,2023 年估计损失达 3650 万美元,两个月内有 40 万台 Windows 设备受到感染。& v1 R" |. b3 Y3 q
4 ~5 m: {. l- }4 ?' Z“但真正令人担忧的不仅仅是数字,而是多层级的盈利策略,”他说。“Lumma 不仅窃取数据,还会系统地收集浏览器历史记录、系统信息,甚至 AnyDesk 配置文件,然后将所有数据泄露给俄罗斯控制的指挥中心。”) L. j5 L7 [/ {
3 ?% B% q/ w. p加剧 Lumma Stealer 威胁的事实是,被盗数据通常会直接输入专门窃取和转售凭证的“交易团队”。
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琼斯补充道:“这会造成毁灭性的连锁反应,一次感染就可能导致银行账户劫持、加密货币盗窃和身份欺诈,而且这种现象在最初的入侵之后还会持续很长时间。”7 b( C( g0 Q3 Q5 F
8 q/ g4 y, \9 a- S2 X5 h) ^2 k虽然 Darktrace 暗示 Lumma 相关漏洞的起源或中心是俄罗斯,但 DNSFilter 指出,利用该恶意软件服务的犯罪分子可能在多个地区开展活动。) j M3 J( @* s, K
& a- r6 T8 m0 A" x& D2 NMikey Pruitt 表示,“此类恶意活动通常会涉及来自多个国家的个人或团体,尤其是使用国际托管服务提供商和恶意软件分发平台。”
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这帮黑客真TM无所不用其极啊,感觉得小心防范才行。 |
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