ElevenPaths Cyber Security Weekly Briefing January 16-22 SolarWinds Update New details have been released about the software supply chain compromise unveiled in December. FireEye researchers have published an analysis that puts the focus on the threat actor called...
Antonio Gil Moyano Homeworking: Balancing Corporate Control and Employee Privacy (II) As a continuation of the first article in which we saw both the regulation of homeworking and the security and privacy measures in this modality, in this second issue...
ElevenPaths Trend Report: Hacktivist CyberThreats Report 2019 An analytical report that includes the periodic scanning of the hacktivist threat’s behavior in five observation rings: Europe and the United Kingdom, North America, Latin America, MENA / Asia...
ElevenPaths Cybersecurity Trends Report for 2020 from ElevenPaths Discover the technologies and attacks that will most affect security in the coming months in this report.
ElevenPaths Cyber Security Weekly Briefing January 16-22 SolarWinds Update New details have been released about the software supply chain compromise unveiled in December. FireEye researchers have published an analysis that puts the focus on the threat actor called...
Gonzalo Álvarez Marañón Plausibly Deniable Encryption or How to Reveal A Key Without Revealing It When the secret police arrested Andrea at the airport checkpoint, she thought it was a mere formality reserved for all foreign citizens. When they searched her luggage and found...
ElevenPaths #CyberSecurityPulse: The Last Disaster of Ethereum’s Most Important Wallets It is estimated that 587 wallets with around 513,774.16 ethers have been frozen after an anomaly in one of Ethereum’s most important wallets was detected. Parity Technologies, a company...
Gonzalo Álvarez Marañón What Is Wrong with Quantum Cryptography That the World’s Largest Intelligence Agencies Discourage Its Use Quantum cryptography does not exist. What everyone understands when the term “quantum cryptography” is mentioned is actually the quantum key distribution (QKD). And this is precisely what I want...
ElevenPaths Cyber Security Weekly Briefing January 16-22 SolarWinds Update New details have been released about the software supply chain compromise unveiled in December. FireEye researchers have published an analysis that puts the focus on the threat actor called...
Antonio Gil Moyano Homeworking: Balancing Corporate Control and Employee Privacy (II) As a continuation of the first article in which we saw both the regulation of homeworking and the security and privacy measures in this modality, in this second issue...
ElevenPaths If you want to change your employees’ security habits, don’t call their will, modify their environment instead You’re in a coffee bar and you need to connect your smartphone to a Wi-Fi, so you check your screen and see the following options. Imagine that you know...
ElevenPaths Cybersecurity Weekly Briefing July 18-24 New Emotet Campaign after 5 Months of Inactivity After several months of inactivity, Emotet is back with a massive sending of reply-chain and payment emails, among others, that include malicious...
Studying the trojan apps for Android used in Hacking Team leakFlorence Broderick 9 July, 2015 Between the information leaked these days about #HackingTeam, several trojan Android APK files have been found. A first approach with Tacyt shows interesting relations with legitimate apps, the ones leaked a few days ago, some leaked last year… and some other notable stuff. We have studied some details of the leaked APKs. They were not public until this recent attack, and they were not detected by many antivirus engines until the leak. It is not the first time that we know about this company’s APKs. During 2014 summer, some remote control Android apps were known to belong to this HackingTeam, and they were used to spy mobile devices. A certificate for binaries in an APK. waste and a mistake To digitally sign an executable file in Windows, an Authenticode certificate is necessary. It may be expensive, between 200 and 500 euros a year, depending on the CA that issues them. To sign an APK, Android doesn’t require anything. It may be “self signed” and, therefore, free. And that is the way most of developers work. In fact, from our database, less than 100 APKs (0,002% approximately) use certificates signed by a CA. The APKs from HackingTeam were signed by this certificate that allows signing executable files as well. The three views of the Authenticode certificate used to sign the APKs And the problem is not only the waste, but the exposition. These certificates were already known since early 2013, when the tools used by HackingTeam to spy remotely were discovered. So, these APKs have been signed after that, in March. We already knew, by then, that they have been used to sign malicious code (at least, since February 2013, as this link states). An unnecessary mistake from HackingTeam. The certificate expires in November 2015. As a side note, in the executable files (in the APK, it does not make any sense) it’s revoked and is not countersigned. That means that, even if it wasn’t revoked, it would stop working in November 2015. Binary file signed with the same certificate What apps they were pretending to be A quick search by the packageName allows us to know what apps were trying to be simulated and contained the trojan. These are some of them that we found. Some examples of legitimate apps used as a decoy for the trojans All of them may be downloaded right now from aptoide or Google Play (although in the latest you may find the earliest versions). The topics are different. From the Quran to spy cameras. Legitimate apps used to create the malware Obviously they differ from the good ones in several aspects. Comparing the legitimate and the trojanized app Much more permissions are needed and a Google Map link is always in the code. We guess they locate victims this way. All the HackingTeam apps keep a Google Maps link in them We insist: these apps shown in their markets are innocuous, it’s just that HackingTeam uses them as trojans (in the more classic meaning of the word) to encourage or disguise the malware installation. More notable facts Both in this leak and previous analyses made to HackingTeam programs (like the one on 2014 summer, where some trojanized APKs were discovered as well), we can see some that could have allowed the early detection of these trojans (aside from using the same certificate). For example, all the APKs share a singularity: between their /assets/, they keep binary files named with a single letter. HackingTeam Android malware contains this kind of files, with these singular names Searching by this kind of file or some of these hashes, we found no other sample containing them in our databases. Some of the files shared by HackingTeam samples are a singularity for them Finally, all the APKs in this leak (except one) were created “2013-04-09” roughly at 11:40, local timezone from the computer they were compiled in. 6 apps were created March, 9th, except one Sergio de los Santos ssantos@11paths.com @ssantosv Adolfo Hernández adolfo.hernandez@11paths.com Telefónica Trend Report: The PoS Malware threat in 2015The Turkish behind pr0nClicker, uploads badware to Google Play for the fourth time
ElevenPaths Cyber Security Weekly Briefing January 16-22 SolarWinds Update New details have been released about the software supply chain compromise unveiled in December. FireEye researchers have published an analysis that puts the focus on the threat actor called...
Antonio Gil Moyano Homeworking: Balancing Corporate Control and Employee Privacy (II) As a continuation of the first article in which we saw both the regulation of homeworking and the security and privacy measures in this modality, in this second issue...
Gonzalo Álvarez Marañón Plausibly Deniable Encryption or How to Reveal A Key Without Revealing It When the secret police arrested Andrea at the airport checkpoint, she thought it was a mere formality reserved for all foreign citizens. When they searched her luggage and found...
ElevenPaths Cyber Security Weekly Briefing January 9-15 Sunburst shows code matches with Russian-associated malware Kaspersky researchers have found that the Sunburst malware used during the SolarWinds supply chain attack is consistent in its characteristics with Kazuar, a...
Sergio De Los Santos The Attack on SolarWinds Reveals Two Nightmares: What Has Been Done Right and What Has Been Done Wrong All cyber security professionals now know at least part of what was originally thought to be “just” an attack on SolarWinds, which has just truned out to be one...
Antonio Gil Moyano Homeworking: Balancing Corporate Control and Employee Privacy (I) At this point in time and looking back on 2020, nobody would have imagined the advance in the digitalisation of organisations and companies due to the irruption of homeworking...